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For 1990-2009 cars only

Rear Housing Assemble NV4500

Installation Procedure

Tools Required

    • J 38807 Extension Housing Bearing Installer
    • J 8092 Universal Driver Handle
    • J 22834-A Extension Housing Seal Installer

    Object Number: 100849  Size: SH
  1. Install the rear output shaft bearing. Use the J 38807 and the J 8092 .

  2. Object Number: 100854  Size: SH
  3. Install the bearing retainer ring.

  4. Object Number: 100952  Size: SH
  5. Install a new oil seal. Use the J 22834-A .

Rear Housing Assemble NV3500 4WD

Rear Housing Disassembly

Tools Required

    • Hydraulic Press
    • J 23907 Slide Hammer with Pilot Bearing Puller

    Object Number: 4845  Size: SH
  1. Remove the rear housing shift shaft bearing. Use tool J 23907 with a suitable pilot bearing puller.
  2. • Install the puller legs behind the bearing lip.
    • If the bearing lip breaks off, install the puller legs behind the inside (outer end) bearing lip.

    Object Number: 4785  Size: SH
  3. Drive out 2 dowel pins.

  4. Object Number: 4847  Size: SH
  5. Remove the following components:
  6. 3.1. 3 bolts
    3.2. The output shaft bearing retainer

    Object Number: 4848  Size: SH
  7. Remove the output shaft bearing assembly. Use a brass drift.
  8. Remove the gasket material from the housing. Use liquid gasket remover.

Rear Housing Assemble NV3500

Rear Housing Assembly

Tools Required

    • J 36190 Driver Handle
    • J 36503 Output Shaft Oil Seal Installer
    • J 36506 5th and Reverse Detent Bushing Remover/Installer

    Object Number: 4724  Size: SH
  1. Install the rear housing shift shaft bearing. Use J 36506 and J 36190 .
  2. 1.1. The writing on the bearing lip should face down.
    1.2. Install the bearing flush with the housing surface.

    Object Number: 4785  Size: SH
  3. Install 2 dowel pins in the housing flange.
  4. Drive the dowel pins rearward and flush with the flange surface.


    Object Number: 1328  Size: SH
  5. Install the slip yoke oil seal. Use J 36503 .

  6. Object Number: 1420  Size: SH
  7. Fill the space between the seal lips with chassis grease. Use GM P/N 1052497 or equivalent.