GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Terrain 🢒 Driveline/Axle 🢒 Rear Drive Axle 🢒 Differential Overhaul

Tools Required

DT-48254 Rear Wheel Drive Shaft Seal Installer

Disassemble Procedure

    Object Number: 1827286 Size: SH
  1. Place a drain pan below the rear drive module.
  2. Remove the drain plug from the bottom of the rear drive module and remove the fill plug from the left side of the rear drive module.
  3. Drain the fluid.

    4. Object Number: 1827287 Size: SH
  4. Remove the differential carrier assembly side bracket.

    5. Object Number: 1827288 Size: SH
  5. Disconnect the coupling control module connector and remove the coupling control module from the rear drive module housing.

    6. Object Number: 1827289 Size: SH
  6. Remove and discard the pinion flange nut.
  7. Remove the pinion flange.

    8. Object Number: 1827405 Size: SH
  8. Remove the clutch coupling assembly, housing and seal.

    9. Object Number: 1827408 Size: SH
  9. Remove the differential carrier assembly side cover and seal.
  10. Remove the rear wheel drive shaft seals.

Assembly Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1827408 Size: SH
  1. Install the differential carrier assembly side cover and seal.

    2. Tighten
    Tighten the differential carrier assembly side bracket securing bolts to 29 N·m (21 lb ft).


    Object Number: 1827411 Size: SH
  2. Install the rear wheel drive shaft seal using the rear wheel drive shaft seal Installer DT-48254.

    3. Object Number: 1827405 Size: SH
  3. Install the clutch coupling assembly, housing and seal.

    4. Tighten
    Tighten the clutch coupling assembly housing securing bolt to 26 N·m (19 lb ft).


    Object Number: 1827289 Size: SH
  4. Install the pinion flange.
  5. Install the new pinion flange nut.

    6. Tighten
    Tighten the pinion flange nut to 203 N·m (150 lb ft).


    Object Number: 1827288 Size: SH
  6. Install the coupling control module onto the rear drive module housing and connect the coupling control module connector.

    7. Tighten
    Tighten the coupling control module securing bolt to 10 N·m (71 lb ft).


    Object Number: 1827287 Size: SH
  7. Install the differential carrier assembly side bracket.

    8. Tighten
    Tighten the differential carrier assembly side bracket bolt to 29 N·m (21 lb ft).


    Object Number: 1827286 Size: SH
  8. Thoroughly clean the drain plug threads and apply thread sealer, GM P/N 12346004 (Canadian P/N 10953480), to the plug threads.

    9. Tighten
    Tighten the plug to 42 N·m (31 lb ft).

  9. Fill the RDM with lubricant until the lubricant overflows through the fill plug hole.
  10. Thoroughly clean the fill plug threads and apply thread sealer, GM P/N 12346004 (Canadian P/N 10953480), to the plug threads.
  11. Install the fill plug.

    12. Tighten
    Tighten the plug to 42 N·m (31 lb ft).