GM Service Manual Online
For 1990-2009 cars only

Checks

Action

DEFINITION: Knocking or clunking noise occurs when operating the vehicle in high gear or coasting in neutral at 16 km/h (10 mph).

One or more of the universal joints are worn or damaged.

Replace the universal joint. Refer to Universal Joint Replacement - External Snap Ring .

The side gear hub counterbore in the differential is worn oversize.

Replace the differential case and/or the side gears. Refer to Differential Replacement .