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                                                                 Exhibit 4.1.3


                             (FACE OF EXCHANGE NOTE)




CUSIP/CINS 651186AC2

               9-7/8% Series B Senior Subordinated Notes due 2008

No. B-1                                                     $__________________

                                  NEWCOR, INC.

promises to pay to Cede & Co. or registered assigns, the principal sum of
$________________ on March 1, 2008.

Interest Payment Dates:  March 1 and September 1

Record Dates:  February 15 and August 15

                                        DATED: __________, 1998

                                        NEWCOR, INC.

                                        BY:________________________________
                                            Name:    W. John Weinhardt
                                            Title:   President and Chief
                                                     Executive Officer

                                        BY:________________________________
                                            Name:    John Garber
                                            Title:   Vice President Finance and
                                                     Chief Financial Officer


This is one of the 9-7/8% Series B Senior 
Subordinated Notes due 2008 referred to
in the within-mentioned Indenture:

U.S. Bank Trust National Association,
as Trustee

By:________________________________





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                                 (Back of Note)

               9-7/8% Series B Senior Subordinated Notes due 2008

THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY (AS DEFINED IN THE INDENTURE
GOVERNING THIS NOTE) OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE BENEFICIAL
OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES
EXCEPT THAT (I) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED
PURSUANT TO SECTION 2.07 OF THE INDENTURE, (II) THIS GLOBAL NOTE MAY BE
EXCHANGED IN WHOLE BUT NOT IN PART PURSUANT TO SECTION 2.06(a) OF THE INDENTURE,
(III) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT
TO SECTION 2.11 OF THE INDENTURE AND (IV) THIS GLOBAL NOTE MAY BE TRANSFERRED TO
A SUCCESSOR DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF NEWCOR, INC.

UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN DEFINITIVE
FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A
NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR
ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A
SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS
CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
COMPANY (55 WATER STREET, NEW YORK, NEW YORK) ("DTC"), TO THE COMPANY OR ITS
AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE
ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS MAY BE
REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO
CEDE & CO. OR SUCH OTHER ENTITY AS MAY BE REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

                  Capitalized terms used herein shall have the meanings assigned
to them in the Indenture referred to below unless otherwise indicated.

                  1. INTEREST. Newcor, Inc., a Delaware corporation (the
"Company"), promises to pay interest on the principal amount of this Note at
9-7/8% per annum from March 4, 1998 until maturity and shall pay the Liquidated
Damages payable pursuant to Section 5 of the Registration Rights Agreement
referred to below. The Company will pay interest and Liquidated Damages
semi-annually on March 1 and September 1 of each year, or


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if any such day is not a Business Day, on the next succeeding Business Day (each
an "Interest Payment Date"). Interest on the Notes will accrue from the most
recent date to which interest has been paid or, if no interest has been paid,
from the date of issuance; provided that if there is no existing Default in the
payment of interest, and if this Note is authenticated between a record date
referred to on the face hereof and the next succeeding Interest Payment Date,
interest shall accrue from such next succeeding Interest Payment Date; provided,
further, that the first Interest Payment Date shall be September 1, 1998. The
Company shall pay interest (including post-petition interest in any proceeding
under any Bankruptcy Law) on overdue principal and premium, if any, from time to
time on demand at a rate that is 1% per annum in excess of the rate then in
effect; it shall pay interest (including post-petition interest in any
proceeding under any Bankruptcy Law) on overdue installments of interest and
Liquidated Damages (without regard to any applicable grace periods) from time to
time on demand at the same rate to the extent lawful. Interest will be computed
on the basis of a 360-day year of twelve 30-day months.

                  2. METHOD OF PAYMENT. The Company will pay interest on the
Notes (except defaulted interest) and Liquidated Damages to the Persons who are
registered Holders of Notes at the close of business on the February 15 or
August 15 next preceding the Interest Payment Date, even if such Notes are
canceled after such record date and on or before such Interest Payment Date,
except as provided in Section 2.12 of the Indenture with respect to defaulted
interest. The Notes will be payable as to principal, premium and Liquidated
Damages, if any, and interest at the office or agency of the Company maintained
for such purpose within or without the City and State of New York, or, at the
option of the Company, payment of interest and Liquidated Damages may be made by
check mailed to the Holders at their addresses set forth in the register of
Holders, and provided that payment by wire transfer of immediately available
funds will be required with respect to principal of and interest, premium and
Liquidated Damages on, all Global Notes and all other Notes the Holders of which
shall have provided wire transfer instructions to the Company or the Paying
Agent. Such payment shall be in such coin or currency of the United States of
America as at the time of payment is legal tender for payment of public and
private debts.

                  3. PAYING AGENT AND REGISTRAR. Initially, U.S. Bank Trust
National Association (formerly known as First Trust National Association), the
Trustee under the Indenture, will act as Paying Agent and Registrar. The Company
may change any Paying Agent or Registrar without notice to any Holder. The
Company or any of its Subsidiaries may act in any such capacity.

                  4. INDENTURE. The Company issued the Notes under an Indenture
dated as of March 4, 1998 ("Indenture") between the Company, the Subsidiary
Guarantors (as defined therein) and the Trustee. The terms of the Notes include
those stated in the Indenture and those made part of the Indenture by reference
to the Trust Indenture Act of 1939, as amended (15 U.S. Code Sections
77aaa-77bbbb). The Notes are subject to all such terms, and Holders are referred
to the Indenture and such Act for a statement of such terms. To the


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extent any provision of this Note conflicts with the express provisions of the
Indenture, the provisions of the Indenture shall govern and be controlling. The
Notes are obligations of the Company limited to $125,000,000 million in
aggregate principal amount, plus amounts, if any, issued to pay Liquidated
Damages on outstanding Notes as set forth in Paragraph 2 hereof.

                  5.  OPTIONAL REDEMPTION

                  (a) Except as set forth in subparagraph (b) of this Paragraph
5, the Company shall not have the option to redeem the Notes prior to March 1,
2003. Thereafter, the Notes will be subject to redemption at any time at the
option of the Company, in whole or in part, upon not less than 30 nor more than
60 days' notice, at the redemption prices (expressed as percentages of principal
amount) set forth below plus accrued and unpaid interest and Liquidated Damages
thereon to the applicable redemption date, if redeemed during the twelve-month
period beginning on March 1 of the years indicated below:


YEAR                                                                 PERCENTAGE

2003................................................................  104.938%
2004................................................................  103.292%
2005................................................................  101.646%
2006 and thereafter.................................................  100.000%



                  (b) Notwithstanding the foregoing, at any time prior to March
1, 2001, the Company may on any one or more occasions redeem up to 35% of the
aggregate principal amount of Notes originally issued under the Indenture at a
redemption price of 109.875% of the principal amount thereof, plus accrued and
unpaid interest and Liquidated Damages thereon, if any, to the redemption date,
with the net cash proceeds of one or more public offerings of common stock of
the Company; provided that at least 65% of the aggregate principal amount of
Notes remain outstanding immediately after the occurrence of such redemption
(excluding the Notes held by the Company and its Subsidiaries); and provided,
further, that such redemption shall occur within 45 days of the date of the
closing of such public offering.

                  6.  MANDATORY REDEMPTION.

                  The Company shall not be required to make mandatory redemption
payments with respect to the Notes.



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                  7.  REPURCHASE AT OPTION OF HOLDER.

                  (a) If there is a Change of Control, the Company shall be
required to make an offer (a "Change of Control Offer") to repurchase all or any
part (equal to $1,000 or an integral multiple thereof) of each Holder's Notes at
a purchase price equal to 101% of the aggregate principal amount thereof plus
accrued and unpaid interest and Liquidated Damages thereon, if any, to the date
of purchase (the "Change of Control Payment"). Within 10 days following any
Change of Control, the Company shall mail a notice to each Holder setting forth
the procedures governing the Change of Control Offer as required by the
Indenture.

                  (b) If the Company or a Subsidiary consummates any Asset
Sales, when the aggregate amount of Excess Proceeds exceeds $10.0 million, the
Company shall commence an offer to all Holders of Notes (as "Asset Sale Offer")
pursuant to Section 3.09 of the Indenture to purchase the maximum principal
amount of Notes that may be purchased out of the Excess Proceeds at an offer
price in cash in an amount equal to 100% of the principal amount thereof plus
accrued and unpaid interest and Liquidated Damages thereon, if any, to the date
of purchase, in accordance with the procedures set forth in the Indenture. To
the extent that the aggregate amount of Notes tendered pursuant to an Asset Sale
Offer is less than the Excess Proceeds, the Company (or such Subsidiary) may use
such deficiency for general corporate purposes. If the aggregate principal
amount of Notes surrendered by Holders thereof exceeds the amount of Excess
Proceeds, the Trustee shall select the Notes to be purchased on a pro rata
basis. Holders of Notes that are the subject of an offer to purchase will
receive an Asset Sale Offer from the Company prior to any related purchase date
and may elect to have such Notes purchased by completing the form entitled
"Option of Holder to Elect Purchase" on the reverse of the Notes.

                  8.  NOTICE OF REDEMPTION. Notice of redemption will be mailed
at least 30 days but not more than 60 days before the redemption date to each
Holder whose Notes are to be redeemed at its registered address. Notes in
denominations larger than $1,000 may be redeemed in part but only in whole
multiples of $1,000, unless all of the Notes held by a Holder are to be
redeemed. On and after the redemption date interest ceases to accrue on Notes or
portions thereof called for redemption.

                  9.  DENOMINATIONS, TRANSFER, EXCHANGE. The Notes are in
registered form without coupons in denominations of $1,000 and integral
multiples of $1,000. The transfer of Notes may be registered and Notes may be
exchanged as provided in the Indenture. The Registrar and the Trustee may
require a Holder, among other things, to furnish appropriate endorsements and
transfer documents and the Company may require a Holder to pay any taxes and
fees required by law or permitted by the Indenture. The Company need not
exchange or register the transfer of any Note or portion of a Note selected for
redemption, except for the unredeemed portion of any Note being redeemed in
part. Also, the Company need not exchange or register the transfer of any Notes
for a period of 15 days before a selection of Notes to be redeemed or during the
period between a record date and the


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corresponding Interest Payment Date.

                  10. SUBORDINATION. The Notes are subordinated in right of
payment, to the extent and in the manner provided in Article 10 of the
Indenture, to the prior payment in full in cash or Cash Equivalents of all
Senior Debt. To the extent provided in the Indenture, Senior Debt must be paid
before the Notes may be paid. The Company agrees and each Holder of Notes by
accepting a Note consents and agrees to the subordination provided in the
Indenture and authorizes the Trustee to give its consent.

                  11. PERSONS DEEMED OWNERS. The registered Holder of a Note may
be treated as its owner for all purposes.

                  12. AMENDMENT, SUPPLEMENT AND WAIVER. Subject to certain
exceptions, the Indenture, the Subsidiary Guarantees or the Notes may be
amended or supplemented with the consent of the Holders of at least a majority
in principal amount of the then outstanding Notes voting as a single class, and
any existing default or compliance with any provision of the Indenture, the
Subsidiary Guarantees or the Notes may be waived with the consent of the
Holders of a majority in principal amount of the then outstanding Notes voting
as a single class. Without the consent of any Holder of a Note, the Indenture,
the Subsidiary Guarantees or the Notes may be amended or supplemented to cure
any ambiguity, defect or inconsistency, to provide for uncertificated Notes in
addition to or in place of certificated Notes, to provide for the assumption of
the Company's or any Subsidiary Guarantor's obligations to Holders of the Notes
in case of a merger or consolidation, to make any change that would provide any
additional rights or benefits to the Holders of the Notes or that does not
adversely affect the legal rights under the Indenture of any such Holder, to
comply with the requirements of the Commission in order to effect or maintain
the qualification of the Indenture under the Trust Indenture Act, or to allow
any Subsidiary Guarantor to execute a supplemental indenture to the Indenture
and/or a Subsidiary Guarantee with respect to the Notes.

                  13. DEFAULTS AND REMEDIES. Events of Default include: (i)
default for 30 days in the payment when due of interest or Liquidated Damages on
the Notes; (ii) default in payment when due of principal of or premium, if any,
on the Notes when the same becomes due and payable at maturity, upon redemption
(including in connection with an offer to purchase) or otherwise, (iii) failure
by the Company or any of its Restricted Subsidiaries to comply with Section
4.07, 4.09, 4.10, 4.15 or 5.01 of the Indenture; (iv) failure by the Company or
any of its Restricted Subsidiaries for 60 days after notice to comply with
certain other agreements in the Indenture or the Notes; (v) default under
certain other agreements relating to Indebtedness of the Company which default
results in the acceleration of such Indebtedness prior to its express maturity;
(vi) certain final judgments for the payment of money that remain undischarged
for a period of 60 days; (vii) certain events of bankruptcy or insolvency with
respect to the Company or any of its Material Subsidiaries; and (viii) except as
permitted by the Indenture, any Subsidiary Guarantee shall be held in any
judicial


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proceeding to be unenforceable or invalid or shall cease for any reason to be in
full force and effect or any Subsidiary Guarantor or any Person acting on its
behalf shall deny or disaffirm its obligations under such Subsidiary Guarantor's
Subsidiary Guarantee. If any Event of Default occurs and is continuing, the
Trustee or the Holders of at least 25% in principal amount of the then
outstanding Notes may declare all the Notes to be due and payable.
Notwithstanding the foregoing, in the case of an Event of Default arising from
certain events of bankruptcy or insolvency, all outstanding Notes will become
due and payable without further action or notice. Holders may not enforce the
Indenture or the Notes except as provided in the Indenture. Except as otherwise
provided in the Indenture, Holders of a majority in principal amount of the then
outstanding Notes may direct the Trustee in its exercise of any trust or power.
The Trustee may withhold from Holders of the Notes notice of any continuing
Default or Event of Default (except a Default or Event of Default relating to
the payment of principal or interest) if it determines that withholding notice
is in their interest. The Holders of a majority in aggregate principal amount of
the Notes then outstanding by notice to the Trustee may on behalf of the Holders
of all of the Notes waive any existing Default or Event of Default and its
consequences under the Indenture except a continuing Default or Event of Default
in the payment of interest on, or the principal of, the Notes. The Company is
required to deliver to the Trustee annually a statement regarding compliance
with the Indenture, and the Company is required upon becoming aware of any
Default or Event of Default, to deliver to the Trustee a statement specifying
such Default or Event of Default.

                  14. TRUSTEE DEALINGS WITH COMPANY. The Trustee, in its
individual or any other capacity, may make loans to, accept deposits from, and
perform services for the Company or its Affiliates, and may otherwise deal with
the Company or its Affiliates, as if it were not the Trustee.

                  15. NO RECOURSE AGAINST OTHERS. A director, officer, employee,
incorporator or stockholder, of the Company or any of the Subsidiary Guarantors,
as such, shall not have any liability for any obligations of the Company or such
Subsidiary Guarantor under the Notes, the Subsidiary Guarantees or the Indenture
or for any claim based on, in respect of, or by reason of, such obligations or
their creation. Each Holder by accepting a Note waives and releases all such
liability. The waiver and release are part of the consideration for the issuance
of the Notes.

                  16. AUTHENTICATION. This Note shall not be valid until
authenticated by the manual signature of the Trustee or an authenticating agent.

                  17. ABBREVIATIONS. Customary abbreviations may be used in the
name of a Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT
(= tenants by the entireties), JT TEN (= joint tenants with right of
survivorship and not as tenants in common), CUST (= Custodian), and U/G/M/A (=
Uniform Gifts to Minors Act).



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                  18. ADDITIONAL RIGHTS OF HOLDERS OF RESTRICTED GLOBAL NOTES
AND RESTRICTED DEFINITIVE NOTES. In addition to the rights provided to Holders
of Notes under the Indenture, Holders of Restricted Global Notes and Restricted
Definitive Notes shall have all the rights set forth in the A/B Exchange
Registration Rights Agreement dated as of March 4, 1998, between the Company and
the parties named on the signature pages thereof (the "Registration Rights
Agreement").

                  19. CUSIP NUMBERS. Pursuant to a recommendation promulgated by
the Committee on Uniform Security Identification Procedures, the Company has
caused CUSIP numbers to be printed on the Notes and the Trustee may use CUSIP
numbers in notices of redemption as a convenience to Holders. No representation
is made as to the accuracy of such numbers either as printed on the Notes or as
contained in any notice of redemption and reliance may be placed only on the
other identification numbers placed thereon.

                  The Company will furnish to any Holder upon written request
and without charge a copy of the Indenture and/or the Registration Rights
Agreement. Requests may be made to:

                  Newcor, Inc.
                  1825 S. Woodward, Suite 240
                  Bloomfield Hills, MI  48302
                  Attention:  John Garber





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                                 ASSIGNMENT FORM

To assign this Note, fill in the form below: (I) or (we) assign and transfer 
this Note to

- -------------------------------------------------------------------------------
                  (Insert assignee's soc. sec. or tax I.D. no.)

- -------------------------------------------------------------------------------


- -------------------------------------------------------------------------------



- -------------------------------------------------------------------------------


- -------------------------------------------------------------------------------
(Print or type assignee's name, address and zip code)

and irrevocably appoint
                        -------------------------------------------------------
to transfer this Note on the books of the Company. The agent may substitute 
another to act for him.

- -------------------------------------------------------------------------------


Date:    __________________

                                      Your Signature: ______________________
                                      (Sign exactly as your name appears on the
                                      face of this Note)

SIGNATURE GUARANTEE.


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                       OPTION OF HOLDER TO ELECT PURCHASE

                  If you want to elect to have this Note purchased by the
Company pursuant to Section 4.10 or 4.15 of the Indenture, check the box below:

                [  ] Section 4.10         [  ] Section 4.15

If you want to elect to have only part of the Note purchased by the Company
pursuant to Section 4.10 or Section 4.15 of the Indenture, state the amount you
elect to have purchased:
$
 ------------------





Date: __________________              Your Signature:______________________
                                      (Sign exactly as your name appears on the
                                      Note)

                                      Tax Identification No:_________________

Signature Guarantee.



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              SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL NOTE

                  The following exchanges of a part of this Global Note for an
interest in another Global Note or for a Definitive Note, or exchanges of a part
of another Global Note or Definitive Note for an interest in this Global Note,
have been made:



                          Amount of                    Amount of                Principal Amount           Signature of
                          decrease in                 increase in                of this Global             authorized
                       Principal Amount            Principal Amount              Note following             officer of
    Date of             of this Global              of this Global              such decrease (or           Trustee or
    Exchange                 Note                        Note                       increase)             Note Custodian
                                                                                             













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                              SUBSIDIARY GUARANTEE


                  For value received, each Subsidiary Guarantor (which term
includes any successor Person under the Indenture) has, jointly and severally,
unconditionally guaranteed, to the extent set forth in the Indenture and subject
to the provisions in the Indenture dated as of March 4, 1998 (the "Indenture")
among Newcor, Inc., the Subsidiary Guarantors listed on Schedule I thereto and
U.S. Bank Trust National Association (formerly known as First Trust National
Association), as trustee (the "Trustee"), (a) the due and punctual payment of
the principal of, premium, if any, and interest on the Notes (as defined in the
Indenture), whether at maturity, by acceleration, redemption or otherwise, the
due and punctual payment of interest on overdue principal and premium, and, to
the extent permitted by law, interest, and the due and punctual performance of
all other obligations of the Company to the Holders or the Trustee all in
accordance with the terms of the Indenture and (b) in case of any extension of
time of payment or renewal of any Notes or any of such other obligations, that
the same will be promptly paid in full when due or performed in accordance with
the terms of the extension or renewal, whether at stated maturity, by
acceleration or otherwise. The obligations of the Subsidiary Guarantors to the
Holders of Notes and to the Trustee pursuant to the Subsidiary Guarantee and the
Indenture are expressly set forth in Article XI of the Indenture and reference
is hereby made to the Indenture for the precise terms of the Subsidiary
Guarantee. Each Holder of a Note, by accepting the same, (a) agrees to and shall
be bound by such provisions, (b) authorizes and directs the Trustee, on behalf
of such Holder, to take such action as may be necessary or appropriate to
effectuate the subordination as provided in the Indenture and (c) appoints the
Trustee attorney-in-fact of such Holder for such purpose; provided, however,
that the Indebtedness evidenced by this Subsidiary Guarantee shall cease to be
so subordinated and subject in right of payment upon any defeasance of this Note
in accordance with the provisions of the Indenture.

                                            GRAND MACHINING COMPANY


                                            By:
                                               -----------------------------   
                                               Name:     John Garber
                                               Title:    Treasurer


                                            DECO TECHNOLOGIES, INC.


                                            By:
                                               -------------------------------  
                                               Name:     John Garber
                                               Title:    Treasurer



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                                 DECO INTERNATIONAL, INC.
                                 
                                 
                                 By:
                                    -----------------------    
                                    Name:     John Garber
                                    Title:    Treasurer
                                 
                                 
                                 TURN-MATIC, INC.
                                 
                                 
                                 By:
                                    -----------------------    
                                    Name:     John Garber
                                    Title:    Treasurer
                                 
                                 
                                 ROCHESTER GEAR, INC.
                                 
                                 
                                 By:
                                    -----------------------         
                                    Name:     John Garber
                                    Title:    Treasurer
                                 
                                 
                                 PLASTRONICS PLUS, INC.
                                 
                                 
                                 By:
                                    ----------------------- 
                                    Name:     John Garber
                                    Title:    Treasurer
                                 
                                 
                                 ENC CORP.
                                 
                                 
                                 By:
                                    ----------------------- 
                                    Name:     John Garber
                                    Title:    Treasurer


          


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