Grand AM L4-138 2.3L VIN A MFI (1992)
The new return spring and spiral retaining ring can be used to service any 1992-1993 HYDRA-MATIC 3T40 (previously THM 125-C) transaxle.
NOTICE:
Do not install the new design return spring in 1991 or previous HYDRA-MATIC 3T40 transaxles. These models have not had their hydraulic pressures
re-calibrated to accept the new spring with a higher spring rate. Transaxle damage will result if this new return spring is installed in 1991 or previous
HYDRA-MATIC 3T40 models.
If the previous design return spring and retainer is being replaced with the new design, install the lo blow off line-up from the service package into the
transaxle when the return spring is changed.
No change was made to the piston or housing.
The lo and reverse clutch spring retainer (656) was eliminated in the design change.
SERVICE PARTS INFORMATION:
Parts are currently available from GMSPO.
Part Number
Part Name
