1

                                                                  Exhibit 4.4(e)

                                 AMENDMENT NO. 4
                                     TO THE
                              CALIBER SYSTEM, INC.
               STOCK SAVINGS AND RETIREMENT INCOME PLAN AND TRUST
                (Amended and Restated Effective January 1, 1994)

                  THIS AMENDMENT NO. 4 to the Caliber System, Inc. Stock Savings
and Retirement Income Plan and Trust (the "Plan") is made and executed this 30th
day of December, 1996 by and between Caliber System, Inc. and Barclays Global
Investors, National Association, as trustee. Unless otherwise provided, this
Amendment No. 4 shall be effective as of July 1, 1996.

                  1. The name of the Plan is hereby changed to the "Caliber
System, Inc. 401(k) Savings Plan".

                  2. Notwithstanding anything in the Plan to the contrary, any
provision within the Plan which requires action by means of written
authorization, written notification or written application shall be deemed
satisfied if such action is taken in accordance with procedures established by
the Plan Administrator.

                  3. Section 2.3 of the Plan is hereby amended by adding the
phrase "and attributable to periods on or after July 1, 1996" at the end
thereof.

                  4. Section 2.4 of the Plan is hereby amended by adding the
phrase "and attributable to periods on or after July 1, 1996" at the end
thereof.



   2




                  5. Section 2.19 of the Plan is hereby amended by redesignating
Subsection (d) as Subsection (c) and by deleting the phrase "any distribution if
it and all Eligible Rollover Distributions to the Participant during the
calendar year are reasonably expected to total less than Two Hundred Dollars
($200), (c)".

                  6. Section 2.23 of the Plan is hereby amended in its entirety
to read as follows:

                           'Enrollment Date' means the earliest practicable date
                  after an Eligible Employee has met the requirements of Section
                  3.1.

                  7. Section 2.28 of the Plan is hereby amended in its entirety
to read as follows:

                           (a) 'Hours of Service' means an hour for which an
                  Employee is paid, or entitled to payment, by one or more
                  Controlled Group Members for the performance of duties as an
                  Employee and such Hours of Service shall be determined in
                  accordance with the provisions of 29 C.F.R. Section   
                  2530.200b-2(a) and (b), which provisions are incorporated
                  herein by reference.

                           (b) Hours of Service shall be credited to eligibility
                  computation periods and Plan Years in accordance with the
                  provisions of 29 C.F.R. Section 2530.200b-2(c), which
                  provisions are incorporated herein by reference. Actual Hours
                  of Service shall be used whenever an accurate record of hours
                  are   maintained for an Employee. Otherwise, an equivalent
                  number of hours shall be credited for each payroll period in
                  which the Employee would be credited with at least 1 hour.
                  The payroll period equivalencies are 45 hours weekly, 90
                  hours biweekly, 95 hours semimonthly and 190 hours monthly.

                           (c) Anything in the Plan to the contrary
                  notwithstanding, for purposes of determining the Hours of
                  Service, an Employee shall be credited with such Hours of
                  Service not otherwise credited


                                        2


   3



                  to him under the Plan as may be required by any applicable 
                  law.

                  8. Section 2.32 of the Plan is hereby amended by adding the
phrase "and attributable to periods on or after July 1, 1996" at the end
thereof.

                  9. Section 2.34 of the Plan is hereby deleted in its entirety.

                  10. A new Section 2.40A is hereby added to the Plan to read as
follows:

                  2.40A    Prior After-Tax Contributions
                  --------------------------------------

                           'Prior After-Tax Contributions' means the
                  contributions provided for in Section 4.1(b) and attributable
                  to periods prior to July 1, 1996.

                  11. A new Section 2.40B is hereby added to the Plan to read as
follows:

                  2.40B    Prior Before-Tax Contributions
                  ---------------------------------------

                           'Prior Before-Tax Contributions' means the
                  contributions provided for in Section 4.1(a) attributable to
                  periods prior to July 1, 1996 and which were eligible for
                  Matching Employer Contributions.

                  12. A new Section 2.40C is hereby added to the Plan to read as
follows:

                  2.40C    Prior Matching Employer Contributions
                  ----------------------------------------------

                           'Prior Employer Matching Contributions' means the
                  contributions provided for in Section 5.1 and attributable to
                  periods prior to July 1, 1996.


                                        3


   4



                  13. The first sentence Section 2.45 of the Plan is hereby
amended in its entirety to read as follows:

                           'Termination of Employment' means the Participant's
                  cessation of employment with the Controlled Group.

                  14. Section 2.50 of the Plan is hereby amended in its entirety
to read as follows:

                           An Employee shall be credited with a Year of Service
                  when he is credited with at least 1,000 Hours of Service in
                  the 12-month period beginning with his Employment Commencement
                  Date and, if applicable, his Reemployment Commencement Date,
                  either of which 12-month periods shall be the 'Initial
                  Eligibility Computation Period.' Whether or not an Employee is
                  entitled to be credited with 1,000 Hours of Service during an
                  Initial Eligibility Computation Period, such Employee shall be
                  credited with a Year of Service if he is credited with at
                  least 1,000 Hours of Service during the Plan Year which
                  includes the first anniversary of his Employment Commencement
                  Date or Reemployment Commencement Date (whichever is
                  applicable) or any Plan Year thereafter.

                  15. The first sentence of Section 3.1 of the Plan is hereby
amended in its entirety to read as follows:

                           Any person who was a Participant in the Plan on June
                  30, 1996 shall continue to be a Participant in the Plan.

                  16. Subsections 4.1(a) and (b) of the Plan are hereby amended
in their entirety to read as follows:

                           (a) Upon enrollment pursuant to Section 3.2, a
                  Participant may agree pursuant to a Salary Reduction Agreement
                  to have his Employer make Before-Tax Contributions to the
                  Trust of up to fifteen percent (15%) of his Compensation (in
                  1/2% increments) through equal pay period reductions;
                  provided, however, that the Before-Tax Contributions of a
                  Participant who is eligible to participate in the Caliber
                  System, Inc. Stock Bonus Plan and Trust may not exceed ten
                  percent (10%) of his Compensation.


                                        4


   5




                           (b) Upon enrollment pursuant to Section 3.2, a
                  Participant may elect to make After-Tax Contributions to the
                  Trust of up to five percent (5%) of his Compensation (in 1/2%
                  increments) through percentage payroll deductions.

                  17. The first sentence of Section 4.2 of the Plan is hereby
amended in its entirety to read as follows:

                  A Participant's Before-Tax Contributions and/or After-Tax
                  Contributions with respect to any pay period must each be a
                  minimum of one percent (1%) of his Compensation and may not,
                  in the aggregate, exceed fifteen percent (15%) of his
                  Compensation; provided, however, that the aggregate Before-Tax
                  Contributions and/or After-Tax Contributions of a Participant
                  who is eligible to participate in the Caliber System, Inc.
                  Stock Bonus Plan and Trust may not exceed ten percent (10%) of
                  his Compensation.

                  18. The second sentence of Section 4.4 of the Plan is hereby
amended in its entirety to read as follows:

                  A Participant may, however, in accordance with the percentages
                  permitted by Sections 4.1 and 4.2, change the percentage of
                  his Before-Tax Contributions and/or his After-Tax
                  Contributions upon prior notice provided in accordance with
                  procedures established by the Plan Administrator to be
                  effective as soon as practicable following the filing of such
                  notice.

                  19. Section 4.4 of the Plan is hereby amended by deleting the
last sentence thereof.

                  20. Section 4.5 of the Plan is hereby amended in its entirety
to read as follows:

                  Upon prior notice provided in accordance with procedures
                  established by the Plan Administrator, a Participant may at
                  any time suspend his Before- Tax Contributions and/or
                  After-Tax Contributions effective as soon as practicable. A
                  Participant who has so suspended his Before-Tax Contributions
                  and/or After-Tax Contributions may, upon prior


                                        5


   6



                  notice provided in accordance with procedures established by
                  the Plan Administrator, resume making such Contributions as
                  soon as practicable if he is an Eligible Employee on such
                  date.

                  21. Subsections 4.7(d) and 4.8(c) of the Plan are hereby
amended by deleting the phrase "prior to March 15 of the following Plan Year,"
each place such phrase occurs and inserting the phrase "prior to the end of the
following Plan Year" in each place thereof.

                  22. Effective as of October 1, 1996, the first sentence of
Section 4.12 is amended by inserting the phrase "either a conduit individual
retirement account or" immediately after the phrase "distributed to the
Participant from."

                  23. Effective January 1, 1997, the first sentence of Section
5.1 of the Plan is hereby amended by deleting the phrase "one hundred percent
(100%)" and inserting the phrase "fifty percent (50%)."

                  24. Subsection 5.2(a) of the Plan is hereby amended in its
entirety to read as follows:

                           (a) Each Participant who is a Covered Employee of a
                  particular Employer shall receive an allocation to his Account
                  of that Employer's Matching Employer Contributions with
                  respect to a Plan Year, which allocation shall be made only
                  with respect to the Participant's Before-Tax Contributions and
                  After-Tax Contributions that do not exceed, in the aggregate,
                  three and one-half percent (3 1/2%) of his Compensation while
                  an active Covered Employee during that Plan Year and are
                  earned prior to his termination of employment with his
                  Employer. Effective January 1, 1997, seven percent (7%) shall
                  be substituted for three and one-half percent (3 1/2%) in the
                  preceding sentence.


                                                    6


   7



                  25. The first sentence of Section 7.2 is hereby amended in its
entirety to read as follows:

                  The Plan Administrator shall establish and maintain, or cause
                  to be established and maintained, an Account for each
                  Participant, which Account will reflect, pursuant to
                  Sub-Accounts established and maintained thereunder, the
                  amount, if any, of the Participant's (a) Before-Tax
                  Contributions, (b) After-Tax Contributions, (c) Matching
                  Employer Contributions, (d) Prior After-Tax Contributions, (e)
                  Prior Before-Tax Contributions, (f) Prior Matching Employer
                  Contributions and (g) Rollover Contributions.

                  26. Section 7.4 of the Plan is hereby amended by deleting
Subsections (a), (b), (c) and (d) thereof and by deleting the phrase "(e)
Notwithstanding the foregoing," in Subsection (e) thereof.

                  27. Subsection 7.5(b) of the Plan is hereby amended in its
entirety to read as follows:

                           (b) Each Participant may, in accordance with
                  procedures established by the Plan Administrator, direct that
                  Before-Tax Contributions, Prior Before-Tax Contributions,
                  After-Tax Contributions, Prior After-Tax Contributions and
                  Rollover Contributions made by or for him be invested in one
                  or more Investment Funds; provided, however, that Prior
                  Before-Tax Contributions and Prior After-Tax Contributions
                  that have been used in determining the allocation of Prior
                  Matching Employer Contributions to a Participant's Account
                  pursuant to Section 5.2 as in effect prior to July 1, 1996
                  must remain invested in the Company Stock Fund until such
                  Participant attains age fifty-five (55).

                  28. Effective as of October 15, 1996, Subsection 7.6(a) of the
Plan is hereby amended by deleting the last sentence thereof.


                                        7


   8




                  29. Subsection 7.6(b) of the Plan is hereby amended by
deleting the word "irrevocably."

                  30. Section 7.7 of the Plan is hereby amended in its entirety
to read as follows:

                           (a) Any investment direction permitted by Section
                  7.5(b) or change of investments for future Contributions
                  permitted by Section 7.6 shall be made by a Participant in
                  accordance with procedures established by the Plan
                  Administrator and shall specify the portion of the
                  Contributions (in whole percentages totalling 100% of the
                  amount agreed to be contributed by the Participant, subject to
                  the limitations provided in Sections 4.1 and 4.2) to be
                  invested in each of the Investment Funds.

                           (b) Such directions shall be effected as soon as
                  administratively feasible.

                  31. Section 7.8 of the Plan is hereby amended in its entirety
to read as follows:

                           (a) Any change in investments for prior Contributions
                  or transfers to the Company Stock Fund permitted by Section
                  7.6 shall be made by a Participant in accordance with
                  procedures established by the Plan Administrator and shall
                  specify the portion of the Investment Fund (in units, shares,
                  percentages or dollars, as applicable) to be transferred and
                  the Investment Fund(s) into which it is to be transferred.

                           (b) Such directions shall be effected as soon as
                  administratively feasible, based upon the value of the Account
                  (or applicable portion thereof) as of the Valuation Date as
                  determined in accordance with procedures established by the
                  Plan Administrator or such other date as may be required by
                  law.

                  32. Section 7.9 of the Plan is hereby amended in its entirety
to read "[Reserved]."


                                        8


   9



                  33. The last sentence of Section 7.10 is hereby amended in its
entirety to read as follows:

                  The Trustee shall vote all other Company Stock in the Company
                  Stock Fund (including shares for which it does not receive
                  instructions from Participants) in accordance with
                  instructions from the Committee.

                  34. The last sentence of Section 7.11 is hereby amended in its
entirety to read as follows:

                  The Trustee shall decide whether or not to tender all other
                  Company Stock in the Company Stock Fund (including shares for
                  which it does not receive instructions from Participants) in
                  accordance with instructions from the Committee.

                  35. Section 8.2 of the Plan is hereby amended in its entirety
to read as follows:

                           (a) A Participant shall be eligible to receive
                  distribution of his Account upon his Termination of Employment
                  (other than by reason of death).

                           (b) Distributions pursuant to this Section shall be
                  paid to a Participant as soon as practicable after the
                  Participant has complied with procedures established by the
                  Plan Administrator pursuant to Section 8.1.

                           (c) If a Participant who has a Termination of
                  Employment should again become an Employee before completion
                  of the distribution of his Account, such distribution shall
                  cease until the Participant again has a Termination of
                  Employment.

                  36. Section 8.3 of the Plan is hereby amended in its entirety
to read as follows:

                           (a) In the case of the death of a Participant, the
                  Participant's Death Beneficiary shall be eligible to receive a
                  distribution of the Participant's Account. If there is more
                  than one Death Beneficiary, the Participant's Account shall be
                  divided in equal shares for each such Death


                                        9


   10



                  Beneficiary, unless the Participant has provided otherwise.

                           (b) Distributions pursuant to this Section shall be
                  paid to a Death Beneficiary as soon as practicable after the
                  Death Beneficiary has complied with procedures established by
                  the Plan Administrator pursuant to Section 8.1.

                           (c) In the case of the death of a Participant, the
                  Committee may require such proper proof of death and such
                  evidence of the right of any person to receive a distribution
                  from the Account of a deceased Participant as the Committee
                  may deem desirable. The Committee's determination of death and
                  of the right of any person to receive payment shall be
                  conclusive.

                  37. Effective as of October 1, 1996, Subsection 8.4(a) of the
Plan is hereby amended in its entirety to read as follows:

                           (a) The distribution of a Participant's Account (or
                  portion thereof) pursuant to this Article shall be as follows:

                           (i) A Participant's Account may be paid in any of the
                  following forms:

                                    (A) a single lump sum payment;

                                    (B) a portion paid in a lump sum payment,
                           and the remainder paid later; or

                                    (C) installments over a period not to exceed
                           the life expectancy of the Participant and his or her
                           Beneficiary.

                           (ii) The Participant's Account will be distributed in
                  cash unless the Participant (or, if applicable, the Death
                  Beneficiary) elects a distribution in-kind, subject to the
                  following procedures and restrictions:

                                    (A) To the extent a distribution consists of
                           amounts invested in the Company Stock Fund, a
                           Participant may receive an in-kind distribution of
                           Company Stock only if such Participant elects to
                           receive a single lump sum payment under Subparagraph
                           (a)(i)(A) above or, on or after approximately


                                       10


   11



                           February 1, 1997, a partial payment under
                           Subparagraph (a)(i)(B) above. Such an in-kind
                           distribution will consist of whole shares of Company
                           Stock and cash in lieu of any fractional share of
                           Company Stock.

                                    (B) To the extent a distribution consists of
                           amounts invested in a particular Investment Fund
                           other than the Company Stock Fund, to effect an
                           in-kind distribution of the portion of a
                           Participant's Account invested in such Investment
                           Funds, the Trustee shall determine the portion of the
                           Participant's Account that is distributable in whole
                           shares or investment units, which the Trustee shall
                           distribute in kind. The portion of the Participant's
                           Account that is not distributable in whole shares or
                           investment units (as determined by the Trustee) and
                           the portion that is attributable to fractional shares
                           or investment units shall be distributed in cash.
                           Such in-kind distributions will only be permitted if
                           the Participant elects a single lump sum distribution
                           pursuant to Subsection 8.4(a)(i)(A).

                                    The value of the portion of the
                           Participant's Account distributable pursuant to this
                           Paragraph shall be the value determined as of the
                           immediately preceding Valuation Date or such other
                           date as may be required by law.

                  38. Subsection 8.4(b) of the Plan is hereby amended by
deleting the word "irrevocably."

                  39. Subsection 8.5(b)(i) of the Plan is hereby amended by
deleting the phrase "in a lump sum payment" and inserting the phrase "in any
form of payment pursuant to Subsection 8.4(a)(i)" in its place.


                                       11


   12



                  40. Subsection 8.6(a) of the Plan is hereby amended in its
entirety to read as follows:

                           (a) In accordance with procedures established by the
                  Plan Administrator, a Participant may withdraw all or a
                  portion of his Account as provided below:

                                    (i) A Participant may withdraw all or a part
                           of the portion of his Account attributable to Prior
                           After-Tax Contributions (including earnings and
                           appreciation thereon).

                                    (ii) A Participant may withdraw all or a
                           portion of his Account attributable to his Rollover
                           Contributions (including the net earnings thereon).

                                    (iii) A Participant may withdraw all or a
                           portion of his Account attributable to Prior Matching
                           Employer Contributions (including earnings and
                           appreciation thereon); provided, however, that Prior
                           Matching Employer Contributions (including earnings
                           and appreciation thereon) that have not been held in
                           his Account for at least two (2) years may not be so
                           withdrawn unless the Participant has been a
                           Participant in the Plan for at least five (5) years
                           or unless such Prior Matching Employer Contributions
                           have been withdrawn pursuant to Section 8.7.

                  Withdrawals pursuant to Subsection 8.6(a) shall be made in
                  cash unless the Participant elects to receive the portion of
                  the withdrawal invested in the Company Stock Fund in-kind. Any
                  such in-kind distribution will consist of whole shares of
                  Company Stock and cash in lieu of any fractional share of
                  Company Stock.

                  41. Section 8.7 of the Plan is hereby deleted in its entirety
and any period of suspension pursuant to the terms of Section 8.7 shall be
deemed terminated as of July 1, 1996. Effective as of October 1, 1996, a new
Section 8.7 is added to


                                       12


   13



the Plan to read as follows:

                  8.7      Withdrawals on Account of Disability or Attainment
                           --------------------------------------------------
                           of Age Fifty-Nine and One-Half (59 1/2)
                           ---------------------------------------

                           A Participant whom the Committee has determined to be
                  disabled for a period of at least 12 months or who has
                  attained age fifty-nine and one-half (59 1/2) may withdraw at
                  any time and from time to time all or a portion of his Account
                  as provided and in the order as set forth below, except that
                  the Participant may instead choose to have amounts taken from
                  his After-Tax Sub-Account and Prior After-Tax Sub-Account
                  first:

                           (a)      Rollover Contribution Sub-Account;
                           (b)      Before-Tax Contributions Sub-Account;
                           (c)      Prior Matching Employer Contributions Sub-
                                    Account;
                           (d)      Matching Employer Contributions Sub-Account;
                           (e       Prior Before-Tax Contributions Sub-Account;
                           (f)      After-Tax Contributions Sub-Account;
                           (g)      Prior After-Tax Contributions Sub-Account.

                  Withdrawals pursuant to this Section shall be made in cash
                  unless the Participant elects to receive the portion of the
                  withdrawal invested in the Company Stock Fund in-kind. Any
                  such in-kind distribution will consist of whole shares of
                  Company Stock and cash in lieu of any fractional share of
                  Company Stock.

                  42. Subsection 8.8(a) of the Plan is hereby amended by
deleting the phrases "attributable to Before-Tax Contributions (excluding any
income allocable thereto)" and "of his Before-Tax Contributions".

                  43. Section 8.8 of the Plan is hereby amended by adding the
following Subsection (c) to the end thereof to read as follows:

                           (c) Amounts withdrawn on account of Hardship shall be
                  withdrawn from a Participant's Account in the order as set
                  forth below:

                           (i)   After-Tax Contributions;
                           (ii)  Prior After-Tax Contributions;


                                       13


   14



                          (iii)  Rollover Contributions;
                          (iv)   Prior Matching Employer Contributions;
                          (v)    Matching Employer Contributions;
                          (vi)   Prior Before-Tax Contributions (excluding any 
                                 earnings);
                          (vii)  Before-Tax Contributions (excluding any
                                 earnings).

                  44. Subsection 8.11(a) of the Plan is hereby amended by
deleting the phrase "(but not less than $500)".

                  45. Effective as of October 1, 1996, a new Section 8.13 is
added to the Plan to read as follows:

                  8.13  Loans
                  -----------

                           The following loan provisions will be effective when
                  the Plan Administrator, in its discretion, determines it is
                  administratively feasible and desirable to provide loans under
                  the Plan.

                           (a) A Participant who is either an Employee of an
                  Employer or a Controlled Group Member or a "party-in-interest"
                  (as defined in Section 3(14) of ERISA) may, in accordance with
                  procedures established by the Plan Administrator, apply for a
                  loan from his Account. Such procedures shall include action to
                  prevent a Participant who is otherwise eligible for a loan
                  from securing a loan if the Administrator has knowledge that
                  the Participant is in bankruptcy or some similar proceeding.
                  Each loan shall be charged against the Participant's Account
                  in the following order (to the extent necessary): Before-Tax
                  Contributions Sub-Account; Prior Matching Employer
                  Contributions Sub-Account; Matching Employer Contributions
                  Sub-Account; Prior Before-Tax Contributions Sub-Account;
                  Rollover Contributions Sub-Account; After-Tax Contributions
                  Sub-Account, and finally, against the Prior After-Tax
                  Contributions Sub-Account.

                           (b) Each loan shall be in an amount which is not less
                  than $1,000. A Participant may only have one loan outstanding
                  at any time. The maximum loan to any Participant (when added
                  to the outstanding balance of all other loans to the
                  Participant from all qualified employer plans (as defined in
                  Code Section 72(p)(4)) of the


                                       14


   15



                  Controlled Group) shall be an amount which does not exceed the
                  lesser of:

                               (i) Fifty Thousand Dollars ($50,000),
                           reduced by the excess (if any) of (A) the highest
                           outstanding balance of such other loans during the
                           one-year period ending on the day before the date on
                           which such loan is made, over (B) the outstanding
                           balance of such other loans on the date on which such
                           loan is made; or

                               (ii) fifty percent (50%) of the value of such
                           Participant's Account on the date on which such loan
                           is made.

                           (c) For each Participant for whom a loan is
                  authorized pursuant to this Section, the Participant's
                  interests will be liquidated first by Sub-Account and then
                  within each Sub-Account amounts shall be taken on a pro-rata
                  basis by Investment Fund to the extent necessary to provide
                  funds for the loan. The Trustee shall establish and maintain a
                  separate recordkeeping account within the Participant's
                  Account (the "Loan Sub-Account") (i) which initially shall be
                  in the amount of the loan, (ii) to which the funds for the
                  loan shall be deemed to have been allocated and then disbursed
                  to the Participant, (iii) to which the Note shall be allocated
                  and (iv) which shall show the unpaid principal of the
                  promissory note. All payments of principal and interest by a
                  Participant shall be credited initially to his Loan
                  Sub-Account and applied against the Note and then credited to
                  the Participant's Sub-Account in accordance with the
                  Participant's then current investment direction for future
                  Contributions; provided, however, that payments of principal
                  and interest to the Prior Matching Employer Contributions
                  Sub-Account, the Matching Employer Contributions Sub-Account,
                  the Prior Before-Tax Contributions Sub-Account, and the Prior
                  After-Tax Contributions Sub-Account shall be reinvested in the
                  Company Stock Fund. The Plan Administrator shall value each
                  Participant's Loan Sub-Account for purposes of Section 7.4 at
                  such times as the Plan Administrator shall deem appropriate,
                  but not less frequently than quarterly.


                                       15


   16



                           (d)  Loans made pursuant to this Section:

                                    (i) shall be made available to all
                           Participants on a reasonably equivalent basis;

                                    (ii) shall not be made available to Highly
                           Compensated Employees in a percentage amount greater
                           than the percentage amount made available to other
                           Participants;

                                    (iii) shall be secured by the Participant's
                           Loan Sub-Account;

                                    (iv) shall be evidenced by a promissory note
                           and security agreement (the "Note") which provides
                           for:

                                            (A) the loan to be secured by the
                                    Participant's Loan Sub-Account;

                                            (B) a rate of interest of one
                                    percent above the prime interest rate as
                                    determined by the Trustee at the time the
                                    loan is processed;

                                            (C) repayment within a specified
                                    period of time, which shall not extend
                                    beyond five (5) years from the date the loan
                                    is made unless the loan proceeds are used to
                                    acquire a dwelling which, within a
                                    reasonable time (determined at the time the
                                    loan is made), is to be used as the
                                    principal residence of the Participant, in
                                    which case the repayment period may extend
                                    to ten (10) years;

                                            (D) repayment in equal payments over
                                    the term of the loan, with payments not less
                                    frequently than monthly; and

                                            (E) for such other terms and
                                    conditions as the Plan Administrator shall
                                    determine, which shall include provision
                                    that:

                                                     (I) with respect to a
                                            Participant who is an Employee, the
                                            loan will be repaid pursuant to
                                            authorization by the Participant of
                                            equal payroll deductions over the
                                            repayment period sufficient to
                                            amortize fully the loan within the
                                            repayment period or by check during


                                       16


   17



                                            any period the Participant is
                                            ineligible for payroll deduction;

                                                     (II) the loan shall be
                                            prepayable in whole or in specified
                                            increments (as determined from time
                                            to time by the Plan Administrator)
                                            at any time without penalty;

                                                      (III) the loan shall be
                                            treated as in default if payments
                                            are more than 90 days late. A
                                            Participant shall then have 30 days
                                            from the time he receives written
                                            notice of the default and a demand
                                            for past due amounts to cure the
                                            default before it becomes final; and

                                                     (IV) the Plan Administrator
                                            may agree to a suspension of loan
                                            payments for up to 12 months for a
                                            Participant who is on a leave of
                                            absence without pay. During such
                                            suspension period, interest shall
                                            continue to accrue. At the end of
                                            such suspension period, all
                                            outstanding loan payments and
                                            interest shall be due unless
                                            otherwise agreed upon by the Plan
                                            Administrator.

                           (e) Notwithstanding any other provision of the Plan,
                  a loan made pursuant to this Section shall be a first lien
                  against the Participant's Loan Sub-Account. Any amount of
                  principal or interest due and unpaid on the loan at the time
                  of any Default on the loan, and any interest accruing
                  thereafter, shall be satisfied by deduction from the
                  Participant's Loan Sub-Account, and shall be deemed to have
                  been distributed to the Participant, as follows:

                                    (i) In the case of a Participant who, at the
                           time of the Default, is an Employee and is not
                           eligible to receive distribution of his Account under
                           the provisions of Article VIII, (other than Hardship
                           withdrawals under Section 8.8) at such time as he
                           first becomes eligible to receive distribution of his
                           Account under the provisions of this Article, (other
                           than Section 8.8); or

                                    (ii) In the case of any other Participant,
                           immediately upon such Default.


                                       17


   18




                  If, as a result of the application of the preceding sentence,
                  an amount of principal or interest on a loan remains
                  outstanding after Default, interest at the rate specified in
                  the Note shall continue to accrue on such outstanding amount
                  until fully satisfied by deduction from the Participant's Loan
                  Sub-Account as hereinabove provided or by payment by or on
                  behalf of such Participant.

                           (f) The Plan Administrator shall have the right to
                  call any Participant's loan once the Participant's employment
                  with all Controlled Group Members has terminated or if the
                  Plan is terminated.

                  46. Subsection 9.8(a) of the Plan is hereby amended by
deleting the phrase "thirty (30)" and inserting the phrase "ninety (90)" in its
place.

                  47. Effective as of October 1, 1996, the second sentence in
Section 14.2 of the Plan is hereby amended in its entirety to read as follows:

                  Notwithstanding the foregoing, this Section shall not preclude
                  the Trustee from complying with a qualified domestic relations
                  order (as defined under Code Section 414(p)), the enforcement
                  of a federal tax levy pursuant to Code Section 6331, or the
                  collection by the United States on a judgment resulting from
                  an unpaid tax assessment, in accordance with the Committee's
                  direction.

                  48. Exhibit B to the Plan is hereby amended in its entirety to
read as follows:

                                    EXHIBIT B

               Additional Investment Funds Pursuant to Section 7.1
                               As of July 1, 1996

                  (1)      The Income Accumulation Fund

                  (2)      MasterWorks Bond Index Fund

                  (3)      MasterWorks Assets Allocation Fund


                                       18


   19




                  (4)      The REX Stock Fund, to be invested in REX Stock. The
                           REX Stock Fund shall be subject to the terms and
                           conditions of Exhibit C.

                  (5)      Mutual Beacon Fund

               Additional Investment Funds Pursuant to Section 7.1
                              As of October 1, 1996

                  (1)      MasterWorks S&P 500 Stock Fund

                  (2)      Vanguard Primecap Fund

                  (3)      MasterWorks LifePath 2000

                  (4)      MasterWorks LifePath 2010

                  (5)      MasterWorks LifePath 2020

                  (6)      MasterWorks LifePath 2030

                  (7)      MasterWorks LifePath 2040

                  (8)      Templeton Foreign Fund

                  (9)      AIM Constellation Fund

                  49. The last sentence of Item (3) of Exhibit C is hereby
amended in its entirety to read as follows:

                  The Trustee shall vote all other REX Stock in the REX Stock
                  Fund (including shares for which it does not receive
                  instructions from Participants) in accordance with
                  instructions from the Committee.

                  50. The last sentence of Item (4) of Exhibit C is hereby
amended in its entirety to read as follows:

                  The Trustee shall decide whether or not to tender all other
                  REX Stock in the REX Stock Fund (including shares for which it
                  does not receive instructions from Participants) in accordance
                  with instructions from the Committee.


                                       19


   20



                  IN WITNESS WHEREOF, the Company and the Trustee have caused
this Amendment No. 4 to be executed by their duly appointed officers.

In the presence of:                       CALIBER SYSTEM, INC.

/s/ Beth P. Ewing                         By: /s/ Donald C. Brown
- ----------------------                       ---------------------------------
                                          Title: 

                                          BARCLAYS GLOBAL INVESTORS,
                                          NATIONAL ASSOCIATION

/s/ C.R. Cogan                            By: /s/ Dolores Upton
- ----------------------                       ---------------------------------
                                          Title: Principal


/s/ Robin Hopkins                         By: /s/ Peter H. Sorensen
- ----------------------                       ---------------------------------
                                          Title: Man. Dir.