GM Service Manual Online
For 1990-2009 cars only

Important: Do not replace missing balance weights or straighten a bent tube.

An unbalanced propeller shaft and universal joint assembly may be caused by one or more of the following conditions:

    • Missing balance weights
    • Bent, dented, or damaged tubing
    • Worn slip spline inboard type
    • Foreign material on the propeller shaft tubing or the end yokes
    • Improperly installed propeller shaft and universal joint assembly
    • If one or more of these conditions exist clean and inspect the propeller shaft assembly and replace as nessesary.