G 10 Van V8-379 6.2L DSL (1987)
Figure No. 2 - Transmission I.D. Name Plate
DATE OF PRODUCTION CHANGE:
(Figure No. 2)
Beginning January 27, 1987 (Julian Date 027) all THM 700-R4 transmissions were produced with an auxiliary accumulator valve body assembly (Figure
No. 1) that has a stepped bore at one end of the piston pin and a new cover with an oval instead of a round exhaust hole at the other end of die pin to
retain the accumulator piston pin in place.
SERVICE ACTION:
The new auxiliary accumulator valve body (377) and cover (371) can be used on any 1987 THM 700- R4 transmission that has an auxiliary valve body
(377).
NOTICE:
If the accumulator piston pin has come out of the auxiliary valve body, check for burnt forward and overrun clutches.
SERVICE PARTS INFORMATION:
Part Number
Description
Models Affected
8663597
Auxiliary
MRM, MXM, FAM,
Accumulator
MAM, MFM, MMM
Valve Body Assembly
8667036
Auxiliary
MCM, MTM, PRM,
Accumulator
TAM, TBM, YXM,
Valve Body
PCM, TJM, TKM,
Assembly
TNM, TRM, TUM,
TXM
8667037
Auxiliary
MDM, MHM, MLM,
Accumulator
MKM, MPM, MUM,
Valve Body
MWM, MZM
Assembly
8667038
Auxiliary
TSM, YAM, YDM,
Accumulator
YFM, YKM, YLM,
Valve Body
YMM, YNM, YPM,
Assembly
YSM, TYM, YZM