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

The driveline center bearing splined shaft angle is excessive or incorrectly set.

Determine if the driveline angle is incorrect then correct as necessary. Refer to Diagnostic Starting Point - Vibration Diagnosis and Correction.

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

Replace the driveshaft complete.

Rubber coupling bolts loose

Tighten the bolts to specifications. Refer to Fastener Tightening Specifications.