DEFINITION: When the vehicle is accelerating at low speed a shudder occurs.

The yoke retainer strap bolts are loose or missing.

Replace or tighten the yoke retainer strap bolts to specifications. Refer to Fastener Tightening Specifications .

The driveline joint angle is excessive or incorrectly set.

Determine if the driveline angle is incorrect and correct as necessary. Refer to Driveline Vibration Analysis in Vibration Diagnosis and Correction.

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

Replace the universal joint. Refer to the following: