Riviera V6-231 3.8L Turbo VIN 9 FI (1984)
Speedometer Gear, A/T: All Technical Service Bulletins
A/T - No 1-2 Upshift/Speedometer Inoperative
Bulletin:
85-7325-3
Date:
May 1985
Ref.. No.: 85-230-7325
SUBJECT:
NO 1-2 UPSHIFT AND/OR SPEEDOMETER INOPERATIVE
MODELS AFFECTED: 1982-1985 RIVIERA
Final Drive Pinion Bearing
Some Rivieras may experience a final drive noise and/or loss of drive due to an overheated final drive pinion bearing. A preliminary sign of this
condition could be a loss of upshifts due to a worn governor gear in the transmission (appearing to be "apple cored," refer to illustration). Therefore, the
final drive pinion bearings should also be replaced at this time.
