CLUTCH GROAN DIESEL DAMPER AND NEW CLUTCH FORK

MODELS: ALL C/K1500 THRU 3500 MODELS WITH 6.2L DIESEL AND 4-SPEED MANUAL OVERDRIVE 89MM TRANSMISSION

To reduce "clutch groan" in the models listed above, a damper and new clutch fork have been released. This noise occurs during engagement and disengagement of the clutch usually at about the halfway position of clutch pedal movement.

Installation Procedures.

1. Remove return spring bracket from clutch fork.

2. Install temporaily the damper underneath the clutch fork using the retum spring mounting bolt.

3. Position the damper to drill the remaining mounting bolt 1/2" inward from flange. (see Figure No. 1).

4. Using a 9/32 drill, drill the remaining mounting bolt and remove the damper.

5. Reinstall the damper in the center of the clutch fork and install the return spring bracket. Torque nuts to 9.5 ft. lbe.

PARTS LIST

Part Quantity Number Required Description

1. 14066237 1 Damper 2. 9422273 2 Nut - 1/4-20 3. 9419892 2 Washer 4. 180022 2 Bolt 1/4-20X1.00

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.