GM Service Manual Online
For 1990-2009 cars only

Front Housing Disassemble NV3500

Front Housing Disassembly

Tools Required

    • Hydraulic Press
    • J 6125-1B Slide Hammer
    • J 23907 Slide Hammer with Pilot Bearing Puller
    • J 36183 Input Shaft Press Tube with Cap
    • J 36184 Adapter Press Tube Reducer
    • J 36507 Detent Brushing Remover/Installer
    • J 36510 Clutch Fork Pivot Remover/Installer
    • J 36511 Oil Fill Plug Hex Bit (17 mm)
    • J 36800 Shift Rail Bushing Remover

Important: Do not reuse any of the bushings which are removed in this procedure.


    Object Number: 4837  Size: SH
  1. Press out the input shaft bearing. Use the following tools:
  2. • A hydraulic press
    • J 36183
    • J 36184

    Object Number: 5226  Size: SH
  3. Remove the shift shaft front housing bushing. Use tool J 36800 and tool J 23907 .

  4. Object Number: 4841  Size: SH
  5. Remove two detent lever bushings.
  6. • If necessary, use tool J 36507 .
    • Remove one bushing at a time.

    Object Number: 4842  Size: SH
  7. Remove the transmission housing vent assembly.
  8. Do not remove the metal tube from the housing.


    Object Number: 4844  Size: SH
  9. Remove the oil fill plug. Use J 36511 .

  10. Object Number: 4843  Size: SH
  11. Remove the oil drain plug. Use J 36511 .
  12. Remove the gasket material from the housing. Use a liquid gasket remover.

Front Housing Disassemble Four Wheel Drive

Front Housing Disassembly

Tools Required

    • Hydraulic Press
    • J 6125-1B Slide Hammer
    • J 23907 Slide Hammer with Pilot Bearing Puller
    • J 36183 Input Shaft Press Tube with Cap
    • J 36184 Adapter Press Tube
    • J 36507 Detent Bushing Remover/Installer
    • J 36510 Clutch Fork Pivot Remover/Installer
    • J 36511 Oil Fill Plug Hex Bit (17 mm)
    • J 36800 Shift Rail Bushing Remover

    Object Number: 4837  Size: SH
  1. Use the following tools in order to press out the input shaft bearing:
  2. • A hydraulic press
    • J 36183
    • J 36184

    Object Number: 5226  Size: SH
  3. Remove the shift shaft front housing bushing. Use tool J 36800 and tool J 23907 .

  4. Object Number: 4840  Size: SH
  5. Remove the clutch fork pivot. Use tool J 36510 and tool J 6125-1B .
  6. 3.1. Put 1 additional nut (3/8-16 thread) on tool J 36510 .
    3.2. Install tool J 6125-1B on the nut.
    3.3. Tighten both nuts.

    Object Number: 4841  Size: SH
  7. Remove two detent lever bushings.
  8. • Use tool J 36507 , if necessary
    • Remove one bushing at a time.

    Object Number: 4842  Size: SH
  9. Remove the transmission housing vent assembly. Do not remove the metal tube from the housing.

  10. Object Number: 4843  Size: SH
  11. Remove the oil fill plug. Use tool J 36511 .

  12. Object Number: 4844  Size: SH
  13. Remove the oil drain plug. Use tool J 36511 .
  14. Remove the gasket material from the housing. Use a liquid gasket remover.

Front Housing Disassemble Two Wheel Drive

Front Housing Disassembly

Tools Required

    • Hydraulic Press
    • J 6125-1B Slide Hammer
    • J 23907 Slide Hammer with Pilot Bearing Puller
    • J 36183 Input Shaft Press Tube with Cap
    • J 36184 Adapter Press Tube Reducer
    • J 36507 Detent Brushing Remover/Installer
    • J 36510 Clutch Fork Pivot Remover/Installer
    • J 36511 Oil Fill Plug Hex Bit (17 mm)
    • J 36800 Shift Rail Bushing Remover

Important: Do not reuse any of the bushings which are removed in this procedure.


    Object Number: 4837  Size: SH
  1. Press out the input shaft bearing. Use the following tools:
  2. • A hydraulic press
    • J 36183
    • J 36184

    Object Number: 5226  Size: SH
  3. Remove the shift shaft front housing bushing. Use tool J 36800 and tool J 23907 .

  4. Object Number: 4841  Size: SH
  5. Remove two detent lever bushings.
  6. • If necessary, use tool J 36507 .
    • Remove one bushing at a time.

    Object Number: 4842  Size: SH
  7. Remove the transmission housing vent assembly.
  8. Do not remove the metal tube from the housing.


    Object Number: 4844  Size: SH
  9. Remove the oil fill plug. Use J 36511 .

  10. Object Number: 4843  Size: SH
  11. Remove the oil drain plug. Use J 36511 .
  12. Remove the gasket material from the housing. Use a liquid gasket remover.