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Pontiac Firebird L4-151 25L Workshop Service and Repair Manuals

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All Other Service Bulletins for Fluid Pump: > < A/T - No Drive and Reverse

Revised A/T Pump Body Assembly for Firebird L4-151 25L (1982)

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Fluid Pump: All Technical Service Bulletins
A/T Pump Body Assembly - Revised

Number

83-I-64

Section 7  Date 04/83

Subject:

NEW DESIGN PUMP BODY ASSEMBLY - 1982 AND 1983 THM 200-C

Beginning in early March 1983, a new design pump body assembly went into production at Hydra-Matic Division for all 1982 and 1983 THM 200-C
transmissions used in Firebird vehicles. The new design pump

body assembly has the pressure relief port removed from the body casting (see illustration).
If a 1982 or 1983 THM 200-C transmission used in a Firebird vehicle requires a pump body assembly, order the service parts listed below:

Pump

Pump

MODEL

BODY

COVER

C7,CN,CO,CK,CB,CW,HB,HF,

8638922

8633958

HH, HL, PS, C9, CS, HO & JJ

The new design pump body casting will have part number 8648111 cast into it.. Verify that you have the correct part before installing it into the vehicle..

All Other Service Bulletins for Fluid Pump: > < A/T - No Drive and Reverse