S15/T15 4WD P/U L4-121 2.0L VIN Y 2-bbl (1983)
Transmission Mount: All Technical Service Bulletins
M/T - Driveline Vibration
Number:
83-T-40
Section:
VIIb
Date:
April, 1983
Subject:
DRIVELINE VIBRATION - 1982 AND
EARLY 1983 "S" TRUCKS EQUIPPED WITH FOUR AND FIVE SPEED MANUAL TRANSMISSIONS AND LR2 (1982 ONLY)
AND LQ2 (1983 ONLY) ENGINE
TO:
ALL CHEVROLET DEALERS
Some 1982 and early production 1983 "S" trucks may exhibit a driveline vibration or audible. The vibration or audible generally occurs in
the engine RPM range of 1700 to 2200. The condition may be accompanied by an instrument panel buzz. The condition is limited to
vehicles with the following driveline combinations.
Model
Year
Manual Transmission Type
Engine
1982
4-Speed (M77) and 5-Speed (MB6)
V6 - 2.8L (LR2)
1983
4-Speed (M77) and 5-Speed (MB6)
LR - 2.0L (LQ2)
FIGURE 1 - INSTALLATION OF TRANSMISSION DAMPER ASM.
