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 One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement .

The driveline joint angle is excessive or incorrectly set.

Inspect the driveline angle. Refer to Diagnostic Starting Point - Vibration Diagnosis and Correction in Vibration Diagnosis and Correction.

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

Replace the universal joint. Refer to Universal Joint and Slip Yoke Replacement