GM Service Manual Online
For 1990-2009 cars only

7. 5/8, 8.6


Object Number: 599396  Size: SH

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

  1. Broadcast code (1)
  2. Build Source (2)
  3. Build date (3) (Julian date)
  4. Shift built (4)

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