Clutch - Chatter/Shudder on Launch
File In Section: 7 - TransmissionBulletin No.: 66-73-04
Date: August, 1996
Subject:
Clutch Chatter/Shudder on Launch
(Install Clutch Kit)
Models:
1994-95 Chevrolet and GMC C/K 1, 2, 3 & P3 Models with 5.7L V8 Engine (VIN K - RPO LOS) and Manual Transmission
Condition
Some owners may report clutch chatter or shudder when launching the vehicle from a stop.
Correction
The following components should be installed:
Clutch kit with revised tuning
(disc and pressure plate assembly)
Release bearing with a steel sleeve
Release fork with corrected fork tip radius
New pilot bearing
Service Procedure
Follow the appropriate Service Manual procedure, Section 70 - Clutch, for clutch assembly replacement.
Important:
Align the light side of the pressure plate assembly, identified by a paint dot near a bolt hole, with the heavy side of the flywheel, identified by an "X." Tighten each pressure plate bolt one turn at a time to evenly compress the spring and avoid warping the pressure plate assembly.
Torque the pressure plate bolts to 40 Nm (29 lb ft).
Parts Information
P/N Description Qty
12388069 Clutch Kit, MG5 1
12388071 Clutch Kit, MT8/MW3 1
15613306 Clutch Release Bearing 1
12385352 Clutch Fork 1
14061665 Clutch Pilot Bearing 1
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor
Operation Description Labor Time
Clutch Disc Use Published Labor
K0800 and/or Cover - Operation Time
Replace
Important:
Labor operation is coded to base vehicle coverage in the warranty system.