S15/T15 2WD P/U L4-119 1.9L (1985)
Pressure Plate: Customer Interest
Driveline - Torsional Vibration
GMC NUMBER:
GROUP:
7B - Manual Transmission
DATE:
July, 1987
CORPORATE
NUMBER:
767201
SUBJECT:
DRIVELINE TORSIONAL VIBRATION
MODELS:
1984-1987 S/T TRUCKS WITH MANUAL TRANSMISSIONS
THIS BULLETIN CANCELS AND SUPERSEDES TRUCK SERVICE
BULLETIN 86-B-22 DATED DECEMBER, 1985, ALL COPIES OF WHICH
SHOULD BE DESTROYED.
Some 1984-87 S/T trucks that experience driveline torsional vibration (noticeable at low engine RPM) may be repaired by installing a revised clutch
plate, which incorporates a longer dampener travel to remove vibration.
P/N 15608690
Plate Assembly
2.5L (LN8)
P/N 15608691
Plate Assembly
2.8L (LL2)
The above parts will be incorporated into production with the start of 1988 model year trucks.
