GM Service Manual Online
For 1990-2009 cars only

11 Inch Axle


Object Number: 640599  Size: SH

Rear axle identification information is stamped on the right side axle tube near the differential housing. The information includes the following:

    • Manufacturing date (1)
    • Part number (2)
    • Model number (3)
    • Limited slip identification tag (4)
    • Ratio tag (5)

In order to verify reports made on the rear axle assembly, include full code letters and build date numbers.