Exhibit 4.6







                      ====================================


                     CAPITAL SECURITIES GUARANTEE AGREEMENT


                               Argo Bancorp, Inc.

                           Dated as of ________, 1998


                      ====================================










                                TABLE OF CONTENTS




                                                                                           Page

                                    ARTICLE I
                         DEFINITIONS AND INTERPRETATION
                                                                                   
         SECTION 1.1      Definitions and Interpretation                                    2

                                   ARTICLE II
                               TRUST INDENTURE ACT

         SECTION 2.1      Trust Indenture Act; Application                                  5
         SECTION 2.2      Lists of Holders of Securities                                    6
         SECTION 2.3      Reports by the Capital Securities Guarantee Trustee               6
         SECTION 2.4      Periodic Reports to Capital Securities Guarantee Trustee          6
         SECTION 2.5      Evidence of Compliance with Conditions Precedent                  6
         SECTION 2.6      Events of Default; Waiver                                         7
         SECTION 2.7      Event of Default; Notice                                          7
         SECTION 2.8      Conflicting Interests                                             7

                                   ARTICLE III
                          POWERS, DUTIES AND RIGHTS OF
                      CAPITAL SECURITIES GUARANTEE TRUSTEE

         SECTION 3.1      Powers and Duties of the Capital Securities
                          Guarantee Trustee                                                 7
         SECTION 3.2      Certain Rights of Capital Securities
                          Guarantee Trustee                                                 9
         SECTION 3.3.     Not Responsible for Recitals or Issuance of
                          Capital Securities Guarantee                                     11

                                   ARTICLE IV
                      CAPITAL SECURITIES GUARANTEE TRUSTEE

         SECTION 4.1      Capital Securities Guarantee Trustee; Eligibility                11
         SECTION 4.2      Appointment, Removal and Resignation of
                          Capital Securities Guarantee Trustee                             12



                                      (2)




                           TABLE OF CONTENTS (cont'd)


                                                                                          Page
                                    ARTICLE V
                                    GUARANTEE
                                                                                  
         SECTION 5.1      Guarantee                                                        13
         SECTION 5.2      Waiver of Notice and Demand                                      13
         SECTION 5.3      Obligations Not Affected                                         13
         SECTION 5.4      Rights of Holders                                                14
         SECTION 5.5      Guarantee of Payment                                             14
         SECTION 5.6      Subrogation                                                      15
         SECTION 5.7      Independent Obligations                                          15

                                   ARTICLE VI
                    LIMITATION OF TRANSACTIONS; SUBORDINATION

         SECTION 6.1      Limitation of Transactions                                       15
         SECTION 6.2      Ranking                                                          16

                                   ARTICLE VII
                                   TERMINATION

         SECTION 7.1      Termination                                                      16

                                  ARTICLE VIII
                          COMPENSATION AND EXPENSES OF
                      CAPITAL SECURITIES GUARANTEE TRUSTEE

         SECTION 8.1      Compensation and Expenses                                        17

                                   ARTICLE IX
                                 INDEMNIFICATION

         SECTION 9.1      Exculpation                                                      17
         SECTION 9.2      Indemnification                                                  18

                                    ARTICLE X
                                  MISCELLANEOUS

         SECTION 10.1     Successors and Assigns                                           18
         SECTION 10.2     Amendments                                                       18
         SECTION 10.3     Notices                                                          19



                                      (3)





                                    TABLE OF CONTENTS (cont'd)




                                                                                           Page
                                                                                  
         SECTION 10.4     Benefit                                                          20
         SECTION 10.5     Governing Law                                                    20


                      
                                      (4)





                     CAPITAL SECURITIES GUARANTEE AGREEMENT


                  This GUARANTEE AGREEMENT (the "Capital Securities Guarantee"),
dated as of ________, 1998, is executed and delivered by Argo Bancorp, Inc., a
Delaware corporation (the "Guarantor"), and Wilmington Trust Company, a Delaware
banking corporation, as trustee (the "Capital Securities Guarantee Trustee"),
for the benefit of the Holders (as defined herein) from time to time of the
Capital Securities (as defined herein) of Argo Capital Trust Co., a Delaware
statutory business trust (the "Issuer").

                  WHEREAS, pursuant to an Amended and Restated Declaration of
Trust (the "Declaration"), dated as of ____, 1998, among the trustees of the
Issuer, the Guarantor, as sponsor, and the holders from time to time of
undivided beneficial interests in the assets of the Issuer, the Issuer issued on
the date thereof 1,500,000 capital securities, having an aggregate liquidation
amount of $15,000,000, such capital securities being designated the ____%
Capital Securities (collectively the "Capital Securities"); and


                  WHEREAS, the Guarantor has executed and delivered a guarantee
agreement (the "Common Securities Guarantee"), dated as of ____, 1998, with
substantially identical terms to this Capital Securities Guarantee, for the
benefit of the holders of the Common Securities (as defined herein), except that
if an Event of Default (as defined in the Declaration) has occurred and is
continuing, the rights of holders of the Common Securities to receive Guarantee
Payments under the Common Securities Guarantee are subordinated, to the extent
and in the manner set forth in the Common Securities Guarantee, to the rights of
holders of Capital Securities and to receive Guarantee Payments under the
Capital Securities Guarantee and , as the case may be;

         NOW, THEREFORE, in consideration of the purchase by each Holder of
Capital Securities which purchase the Guarantor here acknowledges shall benefit
the Guarantor, the Guarantor executes and delivers this Capital Securities
Guarantee for the benefit of such Holders.







                                    ARTICLE I
                         DEFINITIONS AND INTERPRETATION

SECTION 1.1       Definitions and Interpretation

                           In this Capital Securities Guarantee, unless the
context otherwise requires:

                  (a) Capitalized terms used in this Capital Securities
Guarantee but not defined in the preamble above have the respective meanings
assigned to them in this Section 1.1;

                  (b) Terms defined in the Declaration as of the date of
execution of this Capital Securities Guarantee have the same meaning when used
in this Capital Securities Guarantee unless otherwise defined in this Capital
Securities Guarantee;

                  (c) a term defined anywhere in this Capital Securities
Guarantee has the same meaning throughout;

                  (d) all references to "the Capital Securities Guarantee" or
"this Capital Securities Guarantee" are to this Capital Securities Guarantee as
modified, supplemented or amended from time to time;

                  (e) all references in this Capital Securities Guarantee to
Articles and Sections are to Articles and Sections of this Capital Securities
Guarantee, unless otherwise specified;

                  (f) a term defined in the Trust Indenture Act has the same
meaning when used in this Capital Securities Guarantee, unless otherwise defined
in this Capital Securities Guarantee or unless the context otherwise requires;
and

                  (g) a reference to the singular includes the plural and vice
versa.

                  "Affiliate" has the same meaning as given to that term in Rule
405 under the Securities Act of 1933, as amended, or any successor rule
thereunder.

                  "Business Day" means any day other than a Saturday or a
Sunday, or a day on which banking institutions in the States of Delaware or
Illinois are authorized or required by law or executive order to close.

                  "Capital Securities Guarantee Trustee" means Wilmington Trust
Company, a Delaware banking corporation, as trustee hereunder, until a Successor
Capital Securities Guarantee Trustee has been appointed and has accepted such
appointment pursuant to the terms of this Capital Securities Guarantee and
thereafter means each such Successor Capital Securities Guarantee Trustee.

                  "Common Securities" means the securities representing common
undivided beneficial interests in the assets of the Issuer.







                  "Corporate Trust Office" means the office of the Capital
Securities Guarantee Trustee at which the corporate trust business of the
Capital Securities Guarantee Trustee shall, at any particular time, be
principally administered, which office at the date of execution of this
Agreement is located at Rodney Square North, 1100 North Market Street,
Wilmington, Delaware.

                  "Covered Person" means any Holder of Capital Securities.

                  "Debentures" means the series of subordinated debt securities
of the Guarantor designated the ____% Junior Subordinated Deferrable Interest
Debentures due ____ held by the Property Trustee (as defined in the Declaration)
of the Issuer.

                  "Event of Default" means a default by the Guarantor on any of
its payment or other obligations under this Capital Securities Guarantee,
provided, however, that except with respect to a default in payment of any
Guarantee Payment, the Guarantor shall have received notice of default and shall
not have cured such default within 60 days after receipt of such notice.

                  "Guarantee Payments" means the following payments or
distributions, without duplication, with respect to the Capital Securities, to
the extent not paid or made by the Issuer: (i) any accumulated and unpaid
Distributions (as defined in the Declaration) that are required to be paid on
such Capital Securities, to the extent the Issuer has funds on hand legally
available therefor at such time, (ii) the redemption price, including all
accumulated and unpaid Distributions to the date of redemption (the "Redemption
Price"), to the extent the Issuer has funds on hand legally available therefor
at such time, with respect to any Capital Securities called for redemption by
the Issuer and (iii) upon a voluntary or involuntary termination and liquidation
of the Issuer (other than in connection with the distribution of Debentures to
the Holders in exchange for Capital Securities as provided in the Declaration),
the lesser of (a) the aggregate of the liquidation amount and all accumulated
and unpaid Distributions on the Capital Securities to the date of payment, to
the extent the Issuer has funds on hand legally available therefor, and (b) the
amount of assets of the Issuer remaining available for distribution to Holders
in liquidation of the Issuer. If an Event of Default has occurred and is
continuing, no Guarantee Payments under the Common Securities Guarantee with
respect to the Common Securities or any guarantee payment under any Other Common
Securities Guarantees shall be made until the Holders shall be paid in full the
Guarantee Payments to which they are entitled under this Capital Securities
Guarantee.

                  "Holder" shall mean any holder, as registered on the books and
records of the Issuer, of any Capital Securities; provided, however, that, in
determining whether the holders of the requisite percentage of Capital
Securities have given any request, notice, consent or waiver hereunder, "Holder"
shall not include the Guarantor or any Person known to a Responsible Officer of
the Capital Securities Guarantee Trustee to be an Affiliate of the Guarantor.

                  "Indemnified Person" means the Capital Securities Guarantee
Trustee, any Affiliate of the Capital Securities Guarantee Trustee, or any
officers, directors, shareholders,






members, partners, employees, representatives, nominees, custodians or agents of
the Capital Securities Guarantee Trustee.

                  "Indenture" means the Indenture dated as of ____, 1998, among
the Guarantor (the "Debenture Issuer") and Wilmington Trust Company, as trustee
(the "Indenture Trustee"), pursuant to which the Debentures are to be issued to
the Property Trustee of the Issuer.

                  "Indenture Event of Default" shall mean any event specified in
Section 5.01 of the Indenture.

                  "Majority in liquidation amount of the Capital Securities"
means, except as provided by the Declaration or by the Trust Indenture Act, a
vote by Holder(s) of more than 50% of the aggregate liquidation amount of all
Capital Securities.

                  "Officers' Certificate" means, with respect to the Guarantor,
a certificate signed by any of the Chairman, a Vice Chairman, the Chief
Executive Officer, the President, a Vice President, the Comptroller, the
Secretary or an Assistant Secretary of the Guarantor. Any Officers' Certificate
delivered with respect to compliance with a condition or covenant provided for
in this Capital Securities Guarantee (other than pursuant to Section 314(d)(4)
of the Trust Indenture Act) shall include:

                  (a) a statement that each officer signing the Officers'
Certificate has read the covenant or condition and the definitions relating
thereto;

                  (b) a statement that each such officer has made such
examination or investigation as, in such officer's opinion, is necessary to
enable such officer to express an informed opinion as to whether or not such
covenant or condition has been complied with; and

                  (c) a statement as to whether, in the opinion of each such
officer, such condition or covenant has been complied with.

                  "Other Common Securities Guarantees" shall have the same
meaning as "Other Guarantees" as defined in the Common Securities Guarantee.

                  "Other Debentures" means all junior subordinated debentures,
other than the Debentures and the Debentures (as defined in the Indenture),
issued by the Guarantor from time to time and sold to trusts other than the
Issuer to be established by the Guarantor (if any), in each case similar to the
Issuer.

                  "Other Guarantees" means all guarantees, other than this
Capital Securities Guarantee to be issued by the Guarantor with respect to
capital securities (if any) similar to the Capital Securities issued by trusts
other than the Issuer to be established by the Guarantor (if any), in each case
similar to the Issuer.







                  "Person" means a legal person, including any individual,
corporation, estate, partnership, joint venture, association, joint stock
company, limited liability company, trust, unincorporated association, or
government or any agency or political subdivision thereof, or any other entity
of whatever nature.

                  "Responsible Officer" means, with respect to the Capital
Securities Guarantee Trustee, any officer within the Corporate Trust
Administration department of the Capital Securities Guarantee Trustee with
direct responsibility for the administration of this Capital Securities
Guarantee and also means, with respect to a particular corporate trust matter,
any other officer to whom such matter is referred because of that officer's
knowledge of and familiarity with the particular subject.

                  "Successor Capital Securities Guarantee Trustee" means a
successor Capital Securities Guarantee Trustee possessing the qualifications to
act as Capital Securities Guarantee Trustee under Section 4.1.

                  "Trust Indenture Act" means the Trust Indenture Act of 1939,
as amended.

                  "Trust Securities" means the Common Securities and the Series
A Capital Securities and Capital Securities, collectively.


                                   ARTICLE II
                               TRUST INDENTURE ACT

SECTION 2.1                Trust Indenture Act; Application

                           (a) This Capital Securities Guarantee is subject to
the provisions of the Trust Indenture Act that are required to be part of this
Capital Securities Guarantee and shall, to the extent applicable, be governed by
such provisions.

                           (b) If and to the extent that any provision of this
Capital Securities Guarantee limits, qualifies or conflicts with the duties
imposed by Section 310 to 317, inclusive, of the Trust Indenture Act, such
imposed duties shall control.


SECTION 2.2                Lists of Holders of Securities

                       (a) The Guarantor shall provide the Capital Securities
Guarantee Trustee (unless the Capital Securities Guarantee Trustee is otherwise
the registrar of the Capital Securities) with a list, in such form as the
Capital Securities Guarantee Trustee may reasonably require, of the names and
addresses of the Holders ("List of Holders") as of such date, (i) within 14 days
after April 15th, July 15th, October 15th, and January 15th of each year, and
(ii) at any other time within 30 days of receipt by the Guarantor of a written
request for a List of Holders as of a date no more than 14 days before such List
of Holders is given to the Capital Securities






Guarantee Trustee, provided, that the Guarantor shall not be obligated to
provide such List of Holders at any time the List of Holders does not differ
from the most recent List of Holders given to the Capital Securities Guarantee
Trustee by the Guarantor. The Capital Securities Guarantee Trustee may destroy
any List of Holders previously given to it on receipt of a new List of Holders.

                       (b) The Capital Securities Guarantee Trustee shall comply
with its obligations under Sections 311(a), 311(b) and Section 312(b) of the 
Trust Indenture Act.

SECTION 2.3                Reports by the Capital Securities Guarantee Trustee


                  Within 60 days after May 15 of each year, commencing May 15,
1999, the Capital Securities Guarantee Trustee shall provide to the Holders such
reports as are required by Section 313 of the Trust Indenture Act, if any, in
the form and in the manner provided by Section 313 of the Trust Indenture Act.
The Capital Securities Guarantee Trustee shall also comply with the other
requirements of Section 313 of the Trust Indenture Act.

SECTION 2.4                Periodic Reports to Capital Securities Guarantee 
                           Trustee


                  The Guarantor shall provide to the Capital Securities
Guarantee Trustee such documents, reports and information as required by Section
314 (if any) and the compliance certificate required by Section 314 of the Trust
Indenture Act in the form, in the manner and at the times required by Section
314 of the Trust Indenture Act, provided that such compliance certificate shall
be delivered on or before 120 days after the end of each fiscal year of the
Guarantor. Delivery of such reports, information and documents to the Capital
Securities Guarantee Trustee is for informational purposes only and the Capital
Securities Guarantee Trustee's receipt of such shall not constitute constructive
notice of any information contained therein or determinable from information
contained therein, including the Guarantor's compliance with any of its
covenants hereunder (as to which the Capital Securities Guarantee Trustee is
entitled to rely exclusively on Officers' Certificates).

SECTION 2.5                Evidence of Compliance with Conditions Precedent

                  The Guarantor shall provide to the Capital Securities
Guarantee Trustee such evidence of compliance with any conditions precedent, if
any, provided for in this Capital Securities Guarantee that relate to any of the
matters set forth in Section 314(c) of the Trust Indenture Act. Any certificate
or opinion required to be given by an officer pursuant to Section 314(c)(1) may
be given in the form of an Officers' Certificate.

SECTION 2.6                Events of Default; Waiver

                  The Holders of a Majority in liquidation amount of Capital
Securities may, by vote, on behalf of all Holders, waive any past Event of
Default and its consequences. Upon such waiver, any such Event of Default shall
cease to exist, and any Event of Default arising therefrom shall be deemed to
have been cured, for every purpose of this Capital Securities






Guarantee, but no such waiver shall extend to any subsequent or other default or
Event of Default or impair any right consequent thereon.

SECTION 2.7                Event of Default; Notice

                           (a) The Capital Securities Guarantee Trustee shall,
within 90 days after the occurrence of a default with respect to this Capital
Securities Guarantee, mail by first class postage prepaid, to all Holders,
notices of all defaults actually known to a Responsible Officer, unless such
defaults have been cured before the giving of such notice, provided, that,
except in the case of default in the payment of any Guarantee Payment, the
Capital Securities Guarantee Trustee shall be protected in withholding such
notice if and so long as the board of directors, the executive committee, or a
trust committee of directors and/or a Responsible Officer in good faith
determines that the withholding of such notice is in the interests of the
Holders.

                           (b) The Capital Securities Guarantee Trustee shall
not be deemed to have knowledge of any Event of Default unless the Capital
Securities Guarantee Trustee shall have received written notice from the
Guarantor, or a Responsible Officer charged with the administration of this
Capital Securities Guarantee shall have obtained actual knowledge, of such Event
of Default.

SECTION 2.8                Conflicting Interests

                  The Declaration shall be deemed to be specifically described
in this Capital Securities Guarantee for the purposes of clause (i) of the first
proviso contained in Section 310(b) of the Trust Indenture Act.

                                   ARTICLE III
                          POWERS, DUTIES AND RIGHTS OF
                      CAPITAL SECURITIES GUARANTEE TRUSTEE

SECTION 3.1           Powers and Duties of the Capital Securities Guarantee
                      Trustee


                  (a) This Capital Securities Guarantee shall be held by the
Capital Securities Guarantee Trustee for the benefit of the Holders, and the
Capital Securities Guarantee Trustee shall not transfer this Capital Securities
Guarantee to any Person except a Holder exercising his or her rights pursuant to
Section 5.4(b) or to a Successor Capital Securities Guarantee Trustee on
acceptance by such Successor Capital Securities Guarantee Trustee of its
appointment to act as Successor Capital Securities Guarantee Trustee. The right,
title and interest of the Capital Securities Guarantee Trustee shall
automatically vest in any Successor Capital Securities Guarantee Trustee, and
such vesting and succession of title shall be effective whether or not
conveyancing documents have been executed and delivered pursuant to the
appointment of such Successor Capital Securities Guarantee Trustee.







                  (b) If an Event of Default actually known to a Responsible
Officer has occurred and is continuing, the Capital Securities Guarantee Trustee
shall enforce this Capital Securities Guarantee for the benefit of the Holders.

                  (c) The Capital Securities Guarantee Trustee, before the
occurrence of any Event of Default and after the curing of all Events of Default
that may have occurred, shall undertake to perform only such duties as are
specifically set forth in this Capital Securities Guarantee, and no implied
covenants shall be read into this Capital Securities Guarantee against the
Capital Securities Guarantee Trustee. In case an Event of Default has occurred
(that has not been cured or waived pursuant to Section 2.6) and is actually
known to a Responsible Officer, the Capital Securities Guarantee Trustee shall
exercise such of the rights and powers vested in it by this Capital Securities
Guarantee, and use the same degree of care and skill in its exercise thereof, as
a prudent person would exercise or use under the circumstances in the conduct of
his or her own affairs.

                  (d) No provision of this Capital Securities Guarantee shall be
construed to relieve the Capital Securities Guarantee Trustee from liability for
its own negligent action, its own negligent failure to act, or its own willful
misconduct, except that:

                  (i) prior to the occurrence of any Event of Default and after
the curing or waiving of all such Events of Default that may have occurred:

                           (A) the duties and obligations of the Capital
Securities Guarantee Trustee shall be determined solely by the express
provisions of this Capital Securities Guarantee, and the Capital Securities
Guarantee Trustee shall not be liable except for the performance of such duties
and obligations as are specifically set forth in this Capital Securities
Guarantee, and no implied covenants or obligations shall be read into this
Capital Securities Guarantee against the Capital Securities Guarantee Trustee;
and

                           (B) in the absence of bad faith on the part of the
Capital Securities Guarantee Trustee, the Capital Securities Guarantee Trustee
may conclusively rely, as to the truth of the statements and the correctness of
the opinions expressed therein, upon any certificates or opinions furnished to
the Capital Securities Guarantee Trustee and conforming to the requirements of
this Capital Securities Guarantee; but in the case of any such certificates or
opinions that by any provision hereof are specifically required to be furnished
to the Capital Securities Guarantee Trustee, the Capital Securities Guarantee
Trustee shall be under a duty to examine the same to determine whether or not
they conform to the requirements of this Capital Securities Guarantee;

                  (ii) the Capital Securities Guarantee Trustee shall not be
liable for any error of judgment made in good faith by a Responsible Officer,
unless it shall be proved that the Capital Securities Guarantee Trustee was
negligent in ascertaining the pertinent facts upon which such judgment was made;







                  (iii) the Capital Securities Guarantee Trustee shall not be
liable with respect to any action taken or omitted to be taken by it in good
faith in accordance with the direction of the Holders of a Majority in
liquidation amount of the Capital Securities relating to the time, method and
place of conducting any proceeding for any remedy available to the Capital
Securities Guarantee Trustee, or exercising any trust or power conferred upon
the Capital Securities Guarantee Trustee under this Capital Securities
Guarantee; and

                  (iv) no provision of this Capital Securities Guarantee shall
require the Capital Securities Guarantee Trustee to expend or risk its own funds
or otherwise incur personal financial liability in the performance of any of its
duties or in the exercise of any of its rights or powers, if the Capital
Securities Guarantee Trustee shall have reasonable grounds for believing that
the repayment of such funds or liability is not reasonably assured to it under
the terms of this Capital Securities Guarantee or indemnity, reasonably
satisfactory to the Capital Securities Guarantee Trustee, against such risk or
liability is not reasonably assured to it.

SECTION 3.2               Certain Rights of Capital Securities Guarantee Trustee

                  (a)     Subject to the provisions of Section 3.1:

                          (i) The Capital Securities Guarantee Trustee may
conclusively rely, and shall be fully protected in acting or refraining from
acting, upon any resolution, certificate, statement, instrument, opinion,
report, notice, request, direction, consent, order, bond, debenture, note, other
evidence of indebtedness or other paper or document believed by it to be genuine
and to have been signed, sent or presented by the proper party or parties.

                          (ii) Any direction or act of the Guarantor
contemplated by this Capital Securities Guarantee may be sufficiently evidenced
by an Officers' Certificate.

                          (iii) Whenever, in the administration of this Capital
Securities Guarantee, the Capital Securities Guarantee Trustee shall deem it
desirable that a matter be proved or established before taking, suffering or
omitting any action hereunder, the Capital Securities Guarantee Trustee (unless
other evidence is herein specifically prescribed) may, in the absence of bad
faith on its part, request and conclusively rely upon an Officers' Certificate
which, upon receipt of such request, shall be promptly delivered by the
Guarantor.

                          (iv) The Capital Securities Guarantee Trustee shall
have no duty to see to any recording, filing or registration of any instrument
(or any rerecording, refiling or registration thereof).

                          (v) The Capital Securities Guarantee Trustee may
consult with counsel of its selection, and the advice or opinion of such counsel
with respect to legal matters shall be full and complete authorization and
protection in respect of any action taken, suffered or omitted by it hereunder
in good faith and in accordance with such advice or opinion. Such counsel may be
counsel to the Guarantor or any of its Affiliates and may include any of its
employees. The Capital Securities Guarantee Trustee shall have the right at any
time to seek instructions






concerning the administration of this Capital Securities Guarantee from any
court of competent jurisdiction.

                          (vi) The Capital Securities Guarantee Trustee shall
be under no obligation to exercise any of the rights or powers vested in it by
this Capital Securities Guarantee at the request or direction of any Holder,
unless such Holder shall have provided to the Capital Securities Guarantee
Trustee such security and indemnity, reasonably satisfactory to the Capital
Securities Guarantee Trustee, against the costs, expenses (including attorneys'
fees and expenses and the expenses of the Capital Securities Guarantee Trustee's
agents, nominees or custodians) and liabilities that might be incurred by it in
complying with such request or direction, including such reasonable advances as
may be requested by the Capital Securities Guarantee Trustee; provided that,
nothing contained in this Section 3.2(a)(vi) shall be taken to relieve the
Capital Securities Guarantee Trustee, upon the occurrence of an Event of
Default, of its obligation to exercise the rights and powers vested in it by
this Capital Securities Guarantee.

                          (vii) The Capital Securities Guarantee Trustee shall
not be bound to make any investigation into the facts or matters stated in any
resolution, certificate, statement, instrument, opinion, report, notice,
request, direction, consent, order, bond, debenture, note, other evidence of
indebtedness or other paper or document, but the Capital Securities Guarantee
Trustee, in its discretion, may make such further inquiry or investigation into
such facts or matters as it may see fit.

                          (viii) The Capital Securities Guarantee Trustee may
execute any of the trusts or powers hereunder or perform any duties hereunder
either directly or by or through agents, nominees, custodians or attorneys, and
the Capital Securities Guarantee Trustee shall not be responsible for any
misconduct or negligence on the part of any agent or attorney appointed with due
care by it hereunder.

                          (ix) Any action taken by the Capital Securities
Guarantee Trustee or its agents hereunder shall bind the Holders, and the
signature of the Capital Securities Guarantee Trustee or its agents alone shall
be sufficient and effective to perform any such action. No third party shall be
required to inquire as to the authority of the Capital Securities Guarantee
Trustee to so act or as to its compliance with any of the terms and provisions
of this Capital Securities Guarantee, both of which shall be conclusively
evidenced by the Capital Securities Guarantee Trustee's or its agent's taking
such action.

                          (x) Whenever in the administration of this Capital
Securities Guarantee the Capital Securities Guarantee Trustee shall deem it
desirable to receive instructions with respect to enforcing any remedy or right
or taking any other action hereunder, the Capital Securities Guarantee Trustee
(i) may request instructions from the Holders of a Majority in liquidation
amount of the Capital Securities, (ii) may refrain from enforcing such remedy or
right or taking such other action until such instructions are received and (iii)
shall be protected in conclusively relying on or acting in accordance with such
instructions.







                          (xi) The Capital Securities Guarantee Trustee shall
not be liable for any action taken, suffered, or omitted to be taken by it in
good faith, without negligence, and reasonably believed by it to be authorized
or within the discretion or rights or powers conferred upon it by this Capital
Securities Guarantee.

                  (b) No provision of this Capital Securities Guarantee shall be
deemed to impose any duty or obligation on the Capital Securities Guarantee
Trustee to perform any act or acts or exercise any right, power, duty or
obligation conferred or imposed on it in any jurisdiction in which it shall be
illegal, or in which the Capital Securities Guarantee Trustee shall be
unqualified or incompetent in accordance with applicable law, to perform any
such act or acts or to exercise any such right, power, duty or obligation. No
permissive power or authority available to the Capital Securities Guarantee
Trustee shall be construed to be a duty.

SECTION 3.3      Not Responsible for Recitals or Issuance of Capital Securities 
                 Guarantee

                 The recitals contained in this Capital Securities Guarantee
shall be taken as the statements of the Guarantor, and the Capital Securities
Guarantee Trustee does not assume any responsibility for their correctness. The
Capital Securities Guarantee Trustee makes no representation as to the validity
or sufficiency of this Capital Securities Guarantee.


                                   ARTICLE IV
                      CAPITAL SECURITIES GUARANTEE TRUSTEE

SECTION 4.1           Capital Securities Guarantee Trustee; Eligibility

                  (a) There shall at all times be a Capital Securities Guarantee
Trustee which shall:

                           (i) not be an Affiliate of the Guarantor; and

                           (ii) be a corporation organized and doing business
under the laws of the United States of America or any State or Territory thereof
or of the District of Columbia, or a corporation or Person permitted by the
Securities and Exchange Commission to act as an institutional trustee under the
Trust Indenture Act, authorized under such laws to exercise corporate trust
powers, having a combined capital and surplus of at least 50 million U.S.
dollars ($50,000,000), and subject to supervision or examination by Federal,
State, Territorial or District of Columbia authority. If such corporation
publishes reports of condition at least annually, pursuant to law or to the
requirements of the supervising or examining authority referred to above, then,
for the purposes of this Section 4.1(a)(ii), the combined capital and surplus of
such corporation shall be deemed to be its combined capital and surplus as set
forth in its most recent report of condition so published.







                  (b) If at any time the Capital Securities Guarantee Trustee
shall cease to be eligible to so act under Section 4.1(a), the Capital
Securities Guarantee Trustee shall immediately resign in the manner and with the
effect set out in Section 4.2(c).

                  (c) If the Capital Securities Guarantee Trustee has or shall
acquire any "conflicting interest" within the meaning of Section 310(b) of the
Trust Indenture Act, the Capital Securities Guarantee Trustee and Guarantor
shall in all respects comply with the provisions of Section 310(b) of the Trust
Indenture Act, subject to the penultimate paragraph thereof.

SECTION 4.2      Appointment, Removal and Resignation of Capital Securities 
                 Guarantee Trustee

                  (a) Subject to Section 4.2(b), the Capital Securities
Guarantee Trustee may be appointed or removed without cause at any time by the
Guarantor except during an Event of Default.

                  (b) The Capital Securities Guarantee Trustee shall not be
removed in accordance with Section 4.2(a) until a Successor Capital Securities
Guarantee Trustee has been appointed and has accepted such appointment by
written instrument executed by such Successor Capital Securities Guarantee
Trustee and delivered to the Guarantor.

                  (c) The Capital Securities Guarantee Trustee shall hold office
until a Successor Capital Securities Guarantee Trustee shall have been appointed
or until its removal or resignation. The Capital Securities Guarantee Trustee
may resign from office (without need for prior or subsequent accounting) by an
instrument in writing executed by the Capital Securities Guarantee Trustee and
delivered to the Guarantor, which resignation shall not take effect until a
Successor Capital Securities Guarantee Trustee has been appointed and has
accepted such appointment by instrument in writing executed by such Successor
Capital Securities Guarantee Trustee and delivered to the Guarantor and the
resigning Capital Securities Guarantee Trustee.

                  (d) If no Successor Capital Securities Guarantee Trustee shall
have been appointed and accepted appointment as provided in this Section 4.2
within 60 days after delivery of an instrument of removal or resignation, the
Capital Securities Guarantee Trustee resigning or being removed may petition any
court of competent jurisdiction for appointment of a Successor Capital
Securities Guarantee Trustee. Such court may thereupon, after prescribing such
notice, if any, as it may deem proper, appoint a Successor Capital Securities
Guarantee Trustee.

                  (e) No Capital Securities Guarantee Trustee shall be liable
for the acts or omissions to act of any Successor Capital Securities Guarantee
Trustee.

                  (f) Upon termination of this Capital Securities Guarantee or
removal or resignation of the Capital Securities Guarantee Trustee pursuant to
this Section 4.2, the Guarantor shall pay to the Capital Securities Guarantee
Trustee all amounts due to the Capital Securities Guarantee Trustee accrued to
the date of such termination, removal or resignation.






                                    ARTICLE V
                                    GUARANTEE

SECTION 5.1           Guarantee

                  The Guarantor irrevocably and unconditionally agrees to pay in
full to the Holders the Guarantee Payments (without duplication of amounts
theretofore paid by the Issuer), as and when due, regardless of any defense,
right of set-off or counterclaim that the Issuer may have or assert. The
Guarantor's obligation to make a Guarantee Payment may be satisfied by direct
payment of the required amounts by the Guarantor to the Holders or by causing
the Issuer to pay such amounts to the Holders.

SECTION 5.2           Waiver of Notice and Demand


                  The Guarantor hereby waives notice of acceptance of this
Capital Securities Guarantee and of any liability to which it applies or may
apply, presentment, demand for payment, any right to require a proceeding first
against the Issuer or any other Person before proceeding against the Guarantor,
protest, notice of nonpayment, notice of dishonor, notice of redemption and all
other notices and demands.

SECTION 5.3           Obligations Not Affected

                  The obligations, covenants, agreements and duties of the
Guarantor under this Capital Securities Guarantee shall in no way be affected or
impaired by reason of the happening from time to time of any of the following:

                  (a) the release or waiver, by operation of law or otherwise,
of the performance or observance by the Issuer of any express or implied
agreement, covenant, term or condition relating to the Capital Securities to be
performed or observed by the Issuer;

                  (b) the extension of time for the payment by the Issuer of all
or any portion of the Distributions, Redemption Price, Liquidation Distribution
or any other sums payable under the terms of the Capital Securities or the
extension of time for the performance of any other obligation under, arising out
of, or in connection with, the Capital Securities (other than an extension of
time for payment of Distributions, Redemption Price, Liquidation Distribution or
other sum payable that results from the extension of any interest payment period
on the Debentures permitted by the Indenture);

                  (c) any failure, omission, delay or lack of diligence on the
part of the Holders to enforce, assert or exercise any right, privilege, power
or remedy conferred on the Holders pursuant to the terms of the Capital
Securities, or any action on the part of the Issuer granting indulgence or
extension of any kind;







                  (d) the voluntary or involuntary liquidation, dissolution,
sale of any collateral, receivership, insolvency, bankruptcy, assignment for the
benefit of creditors, reorganization, arrangement, composition or readjustment
of debt of, or other similar proceedings affecting, the Issuer or any of the
assets of the Issuer;

                  (e) any invalidity of, or defect or deficiency in, the Capital
Securities;

                  (f) the settlement or compromise of any obligation guaranteed
hereby or hereby incurred;

                  (g) any other circumstance whatsoever that might otherwise
constitute a legal or equitable discharge or defense of a guarantor, it being
the intent of this Section 5.3 that the obligations of the Guarantor with
respect to the Guarantee Payments shall be absolute and unconditional under any
and all circumstances.

                  There shall be no obligation of the Holders to give notice to,
or obtain consent of, the Guarantor with respect to the happening of any of the
foregoing.

SECTION 5.4           Rights of Holders

                  (a) The Holders of a Majority in liquidation amount of the
Capital Securities have the right to direct the time, method and place of
conducting any proceeding for any remedy available to the Capital Securities
Guarantee Trustee in respect of this Capital Securities Guarantee or exercising
any trust or power conferred upon the Capital Securities Guarantee Trustee under
this Capital Securities Guarantee.

                  (b) If the Capital Securities Guarantee Trustee fails to
enforce this Capital Securities Guarantee, any Holder may institute a legal
proceeding directly against the Guarantor to enforce the Capital Securities
Guarantee Trustee's rights under this Capital Securities Guarantee, without
first instituting a legal proceeding against the Issuer, the Capital Securities
Guarantee Trustee or any other person or entity. The Guarantor waives any right
or remedy to require that any action be brought first against the Issuer or any
other person or entity before proceeding directly against the Guarantor.

SECTION 5.5           Guarantee of Payment

                  This Capital Securities Guarantee creates a guarantee of
payment and not of collection.

SECTION 5.6           Subrogation

                  The Guarantor shall be subrogated to all (if any) rights of
the Holders against the Issuer in respect of any amounts paid to such Holders by
the Guarantor under this Capital Securities Guarantee; provided, however, that
the Guarantor shall not (except to the extent required by mandatory provisions
of law) be entitled to enforce or exercise any right that it may






acquire by way of subrogation or any indemnity, reimbursement or other
agreement, in all cases as a result of payment under this Capital Securities
Guarantee, if, at the time of any such payment, any amounts are due and unpaid
under this Capital Securities Guarantee. If any amount shall be paid to the
Guarantor in violation of the preceding sentence, the Guarantor agrees to hold
such amount in trust for the Holders and to pay over such amount to the Holders.

SECTION 5.7           Independent Obligations

                  The Guarantor acknowledges that its obligations hereunder are
independent of the obligations of the Issuer with respect to the Capital
Securities, and that the Guarantor shall be liable as principal and as debtor
hereunder to make Guarantee Payments pursuant to the terms of this Capital
Securities Guarantee notwithstanding the occurrence of any event referred to in
subsections (a) through (g), inclusive, of Section 5.3 hereof.


                                   ARTICLE VI
                    LIMITATION OF TRANSACTIONS; SUBORDINATION

SECTION 6.1           Limitation of Transactions

                  So long as any Capital Securities remain outstanding, the
Guarantor shall not (i) declare or pay any dividends or distributions on, or
redeem, purchase, acquire, or make a liquidation payment with respect to, any of
the Guarantor's capital stock (which includes common and preferred stock), (ii)
make any payment of principal of, or premium, if any, or interest on or repay,
repurchase or redeem any debt securities of the Guarantor (including any Other
Debentures) that rank pari passu with or junior in right of payment to the
Debentures or (iii) make any guarantee payments with respect to any guarantee by
the Guarantor of the debt securities of any subsidiary of the Guarantor
(including Other Guarantees) if such guarantee ranks pari passu with or junior
in right of payment to the Debentures (other than (a) dividends or distributions
in shares of, or options, warrants, rights to subscribe for or purchase shares
of, common stock of the Guarantor, (b) any declaration of a dividend in
connection with the implementation of a stockholders' rights plan, or the
issuance of stock under any such plan in the future, or the redemption or
repurchase of any such rights pursuant thereto, (c) payments under the Capital
Securities Guarantee, (d) as a result of a reclassification of the Guarantor's
capital stock or the exchange or the conversion of one class or series of the
Guarantor's capital stock for another class or series of the Guarantor's capital
stock, (e) the purchase of fractional interests in shares of the Guarantor's
capital stock pursuant to the conversion or exchange provisions of such capital
stock or the security being converted or exchanged and (f) purchases of common
stock related to the issuance of common stock or rights under any of the
Guarantor's benefit plans for its directors, officers or employees or any of the
Guarantor's dividend reinvestment plans) if at such time (i) there shall have
occurred any event of which the Guarantor has actual knowledge that (a) is, or
with the giving of notice or the lapse of time, or both, would be an Indenture
Event of Default and (b) in respect of which the Guarantor shall not have taken
reasonable steps to cure, (ii) if such Debentures are held by the Property
Trustee, the Guarantor shall be in default with respect to its payment of any
obligations under this Capital Securities Guarantee or (iii) the






Guarantor shall have given notice of its election of the exercise of its right
to extend the interest payment period pursuant to Section 16.01 of the Indenture
and any such extension shall be continuing.

SECTION 6.2           Ranking

                  This Capital Securities Guarantee will constitute an unsecured
obligation of the Guarantor and will rank (i) subordinate and junior in right of
payment to Senior Indebtedness (as defined in the Indenture), to the same extent
and in the same manner that the Debentures are subordinated to Senior
Indebtedness pursuant to the Indenture, (ii) pari passu with the Debentures, the
Other Debentures, the Common Securities Guarantee and any Other Guarantee and
any Other Common Securities Guarantee, and (iii) senior to the Guarantor's
capital stock.


                                   ARTICLE VII
                                   TERMINATION

SECTION 7.1           Termination

                  This Capital Securities Guarantee shall terminate (i) upon
full payment of the Redemption Price (as defined in the Declaration) of all
Capital Securities or (ii) upon liquidation of the Issuer, the full payment of
the amounts payable in accordance with the Declaration or the distribution of
the Debentures to the Holders and the holders of Common Securities.
Notwithstanding the foregoing, this Capital Securities Guarantee will continue
to be effective or will be reinstated, as the case may be, if at any time any
Holder must restore payment of any sums paid under the Capital Securities or
under this Capital Securities Guarantee.

                                  ARTICLE VIII
                          COMPENSATION AND EXPENSES OF
                      CAPITAL SECURITIES GUARANTEE TRUSTEE

SECTION 8.1           Compensation and Expenses

                  The Guarantor covenants and agrees to pay to the Capital
Securities Guarantee Trustee from time to time, and the Capital Securities
Guarantee Trustee shall be entitled to, such compensation as shall be agreed to
in writing between the Guarantor and the Capital Securities Guarantee Trustee
(which shall not be limited by any provision of law in regard to the
compensation of a trustee of an express trust), and the Guarantor will pay or
reimburse the Capital Securities Guarantee Trustee upon its request for all
reasonable expenses, disbursements and advances incurred or made by the Capital
Securities Guarantee Trustee in accordance with any of the provisions of this
Capital Securities Guarantee (including the reasonable compensation and the
expenses and disbursements of its counsel and of all persons not regularly in
its employ) except any such expense, disbursement or advance as may arise from
its negligence or bad faith. The Guarantor also covenants to indemnify each of
the Capital Securities Guarantee Trustee (and its officers, agents, directors
and employees) for, and to hold it harmless against, any and all loss,






damage, claim, liability or expense including taxes (other than taxes based on
the income of the Capital Securities Guarantee Trustee) incurred without
negligence or bad faith on the part of the Capital Securities Guarantee Trustee
and arising out of or in connection with the acceptance or administration of
this guarantee, including the costs and expenses of defending itself against any
claim of liability in the premises. The obligations of the Guarantor under this
Article VIII to compensate and indemnify the Capital Securities Guarantee
Trustee and to pay or reimburse the Capital Securities Guarantee Trustee for
expenses, disbursements and advances shall be secured by a lien prior to that of
the Capital Securities upon all property and funds held or collected by the
Capital Securities Guarantee Trustee as such, except funds held in trust for the
benefit of the holders of particular Capital Securities.

                  The provisions of this Article shall survive the termination
of this Capital Securities Guarantee.


                                   ARTICLE IX
                                 INDEMNIFICATION

SECTION 9.1           Exculpation

                  No Indemnified Person shall be liable, responsible or
accountable in damages or otherwise to the Guarantor or any Covered Person for
any loss, damage or claim incurred by reason of any act or omission performed or
omitted by such Indemnified Person in good faith in accordance with this Capital
Securities Guarantee and in a manner that such Indemnified Person reasonably
believed to be within the scope of the authority conferred on such Indemnified
Person by this Capital Securities Guarantee or by law, except that an
Indemnified Person shall be liable for any such loss, damage or claim incurred
by reason of such Indemnified Person's negligence or willful misconduct with
respect to such acts or omissions.

                  An Indemnified Person shall be fully protected in relying in
good faith upon the records of the Guarantor and upon such information,
opinions, reports or statements presented to the Guarantor by any Person as to
matters the Indemnified Person reasonably believes are within such other
Person's professional or expert competence and who has been selected with
reasonable care by or on behalf of the Guarantor, including information,
opinions, reports or statements as to the value and amount of the assets,
liabilities, profits, losses, or any other facts pertinent to the existence and
amount of assets from which Distributions to Holders might properly be paid.

SECTION 9.2           Indemnification

                  The Guarantor agrees to indemnify each Indemnified Person for,
and to hold each Indemnified Person harmless against, any and all loss,
liability, damage, claim or expense incurred without negligence or bad faith on
its part, arising out of or in connection with the acceptance or administration
of the trust or trusts hereunder, including the costs and expenses (including
reasonable legal fees and expenses) of defending itself against, or
investigating, any claim or liability in connection with the exercise or
performance of any of its powers or duties






hereunder. The obligation to indemnify as set forth in this Section 9.2 shall
survive the termination of this Capital Securities Guarantee.


                                    ARTICLE X
                                  MISCELLANEOUS

SECTION 10.1          Successors and Assigns

                  All guarantees and agreements contained in this Capital
Securities Guarantee shall bind the successors, assigns, receivers, trustees and
representatives of the Guarantor and shall inure to the benefit of the Holders
then outstanding.


SECTION 10.2          Amendments

                  Except with respect to any changes that do not materially
adversely affect the rights of Holders (in which case no consent of Holders will
be required), this Capital Securities Guarantee may only be amended with the
prior approval of the Holders of a Majority in liquidation amount of the Capital
Securities (including the stated amount that would be paid on redemption,
liquidation or otherwise, plus accrued and unpaid Distributions to the date upon
which the voting percentages are determined). The provisions of the Declaration
with respect to consents to amendments thereof (whether at a meeting or
otherwise) shall apply to the giving of such approval.

SECTION 10.3          Notices

                  All notices provided for in this Capital Securities Guarantee
shall be in writing, duly signed by the party giving such notice, and shall be
delivered, telecopied or mailed by first class mail, as follows:

                  (a) If given to the Issuer, in care of the Administrative
Trustee at the Issuer's mailing address set forth below (or such other address
as the Issuer may give notice of to the Holders and the Capital Securities
Guarantee Trustee):

                                Argo Capital Trust Co.
                                c/o Argo Bancorp, Inc.
                                7600 W. 63rd Street
                                Summit, Illinois 60501-1830
                                Attention:     John G. Yedinak
                                Telecopy:      (708) 496-2189

                  (b) If given to the Capital Securities Guarantee Trustee, at
the Capital Securities Guarantee Trustee's mailing address set forth below (or
such other address as the Capital Securities Guarantee Trustee may give notice
of to the Holders and the Issuer):







                            Wilmington Trust Company
                            Rodney Square North
                            1100 North Market Street
                            Wilmington, Delaware 19890
                            Attention:       Corporate Trust Administration
                            Telecopy:        (302) 651-8882

                  (c) If given to the Guarantor, at the Guarantor's mailing
address set forth below (or such other address as the Guarantor may give notice
of to the Holders and the Capital Securities Guarantee Trustee):

                            Argo Bancorp, Inc.
                            7600 W. 63rd Street
                            Summit, Illinois 60501-1830
                            Attention:    John G. Yedinak
                            Telecopy:     (708) 496-2189

                  (d) If given to any Holder, at the address set forth on the
books and records of the Issuer.

                  All such notices shall be deemed to have been given when
received in person, telecopied with receipt confirmed, or mailed by first class
mail, postage prepaid except that if a notice or other document is refused
delivery or cannot be delivered because of a changed address of which no notice
was given, such notice or other document shall be deemed to have been delivered
on the date of such refusal or inability to deliver.

SECTION 10.4          Benefit

                  This Capital Securities Guarantee is solely for the benefit of
the Holders and, subject to Section 3.1(a), is not separately transferable from
the Capital Securities.

SECTION 10.5          Governing Law

                  THIS CAPITAL SECURITIES GUARANTEE SHALL BE GOVERNED BY, AND
CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF DELAWARE,
WITHOUT REGARD TO CONFLICTS OF LAWS PRINCIPLES THEREOF.






                  THIS CAPITAL SECURITIES GUARANTEE is executed as of the day
and year first above written.

                               ARGO BANCORP, INC.
                                as Guarantor



                                By:
                                    -----------------------------
                                    Name:
                                    Title:


                                 Wilmington Trust Company
                                  as Capital Securities Guarantee Trustee



                                  By:
                                      -----------------------------
                                      Name:
                                      Title: