Cause  | Correction  | 
|---|---|
When accelerating the vehicle at low speed a shudder occurs.  | |
Bolts are loose or missing at the flanges  | Replace and/or tighten bolts to specified torque. Refer to Fastener Tightening Specifications .  | 
The universal joint is worn  | Replace the universal joint. Refer to Universal Joint Replacement - External Snap Ring .  |