GM Service Manual Online
For 1990-2009 cars only

Before assembly, carefully and thoroughly inspect all drive unit parts for wear or stress. Replacement of worn parts eliminates costly drive component repair after assembly.

    • Inspect for nicks or burrs that could prevent the outer diameter of the pinion seal from sealing. Remove any burrs.
    • Inspect the bearing cup bores for nicks or burrs. Remove any burrs that are found.
    • Inspect the housing for cracks. Replace the housing if you find any cracks.
    • Inspect the housing for foreign material such as metal chips, dirt, or rust.