GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2006 🢒 Terraza Ext. 🢒 Driveline/Axle 🢒 Rear Drive Axle 🢒 Differential Carrier Assembly Disassemble

    Object Number: 630671 Size: SH

    Important: Do not disassemble the side cover or differential assembly. Oil seal damage or the entry of foreign material into the hydraulic system may effect system operation.

  1. Remove the lubricant drain plug (2) and gasket from the differential. Allow the lubricant to drain.

    2. Object Number: 630655 Size: SH
  2. Remove the clamp (2) and vent hose assembly (1) from the differential (3).

    3. Object Number: 630684 Size: SH
  3. Remove the clutch pump check valve bolts (4, 5) and valve (3) from the differential.
  4. Remove the O-ring seals (1, 2) from the valve, if required. The O-ring seals may be reused if not cut or damaged.

    5. Object Number: 630649 Size: SH

    Important: Do not remove the dampeners from the torque tube. Removal and reinstallation may effect component noise and/or vibration levels.

  5. Remove the nut (1), bolt (7), washers (2, 8), and spacers (3, 6) from the tube (9).
  6. Remove the bracket (4) from the tube (9).

    7. Object Number: 630651 Size: SH
  7. Remove the bolts (1) from the differential.

    8. Object Number: 630652 Size: SH
  8. Separate the torque tube (1) from the differential (2).

    9. Object Number: 630669 Size: SH
  9. Remove the bolts (1) from the differential.

    10. Object Number: 630670 Size: SH
  10. Remove the pinion and housing assembly (1) and shim (2) from the differential (3).

    11. Object Number: 630673 Size: SH
  11. Remove the oil seal (1) and O-ring (3) from the pinion housing (2).

    12. Object Number: 1532258 Size: SH
  12. Remove the left axle shaft oil seal (1) from the differential.

    13. Object Number: 1532261 Size: SH
  13. Remove the right axle shaft oil seal (1) from the differential.