Safari Wagon V8-305 5.0L (1987)
Figure 4 - 1-2 Accumulator Housing Assembly
SERVICE PROCEDURE:
(Figure 2)
To service a 1987 or 1988 THM 200-4R CCF, CHF, CRF, CTF, CYF, CZF, KCF, KJF, KTF model exhibiting a harsh reverse engagement (built prior
to March 14, 1988), replace the spacer plate and 1-2 accumulator housing assembly with the appropriate parts listed under "Service Parts Information".
To identify the "reverse engagement" spacer plate and 1-2 accumulator housing:
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The new spacer plate has a round hole (indicated by the arrow in Figure 3); the previous spacer plate had a rectangular hole in that location.
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The new 1-2 accumulator housing contains a checkball and sleeve assembly (refer to Figure 4).
SERVICE PARTS INFORMATION:
Part Number
Description
Model
8657755
1-2 Accumulator Housing Assembly
7CCF, 7CHF, 7CRF, 7CTF
8634969
Spacer Plate Gaskets (Pkg. of 2)
7CYF, 7CZF, 7KJF, 7KTF
8634166
1-2 Accumulator Housing to
8CCF, 8CHF, 8CRF, 8CTF
Accumulator Plate Gasket
8CYF, 8CZF, 8KTF
8669050
Spacer Plate
(Identification: CD)
7CRF, 7CTF, 8CRF, 8CTF
8669060
Spacer Plate
(Identification: CH)
7KCF, 7KJF, 7KTF, 8KTF
8669051
Spacer Plate
(Identification: CE)
7CCF,
8CCF
8669049
Spacer Plate
(Identification: CC)
7CHF,
8CHF
8669052
Spacer Plate
(Identification: CF)
7CYF,
8CYF
8669047
Spacer Plate
(Identification: CA)
7CZF,
8CZF
Parts are currently available from GMSPO.
Transmissions built after implementation of the reverse engagement package, March 14, 1988, can be serviced with individual components available
through GMSPO. Refer to the GMSPO catalog for part numbers.
SERVICE MANUAL REFERENCE:
Refer to the Unit Repair section of the THM 200-4R service manual for spacer plate and 1-2 accumulator service information.