Somerset V6-181 3.0L (1986)
Pinion Gear: Technical Service Bulletins
A/T - New R&R Final Drive Pinion Gear Washers & Sun Gear
Bulletin
89-7-5
Date
June, '89
Ref. No.
89-161-7
Corp. Ref. No.
977119
SUBJECT:
NEW PROCEDURE FOR REPLACEMENT OF FINAL DRIVE PINION GEAR WASHERS AND SUN GEAR
MODELS AFFECTED:
1980-89 MODELS WITH THM 125, THM 125C/HYDRA-MATIC 3T40, AND THM 440-T4/HYDRA-MATIC 4T60 TRANSAXLE
BULLETIN COVERS
A new service procedure to replace final drive pinion gear washers (807) and differential carrier sun gear bearing (677) on THM
440-T4/HYDRA-MATIC 4T60 or (676) on THM 125C/HYDRA-MATIC 3T40.
SERVICE PROCEDURE
Checking End Play
Measure pinion gear end play using a feeler gage. The correct end play range is 0.24 mm - 0.63 mm (0.009" - 0.025"). If out of range, follow the
procedure given in this bulletin, since it is not currently included in the Unit Repair section of your Service Manual. (Refer to Illustration)
Disassembly
1.
After removing final drive from unit, clean the entire bottom pan since it will be used to hold needle bearings.
