GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2008 🢒 Lucerne 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T80-E 🢒 Final Drive Internal Gear Replacement

Removal Procedure
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the final drive carrier. Refer to Final Drive Assembly Replacement .

    3. Object Number: 687607 Size: SH
  3. Remove the final drive internal gear snap ring (135).
  4. Remove the final drive internal gear (120).

Installation Procedure

    Object Number: 687607 Size: SH
  1. Install the final drive internal gear (120).
  2. Install the final drive internal gear snap ring (135).
  3. Install the final drive carrier. Refer to Final Drive Assembly Replacement .