Manual:HUMMER Hummer H3 Base 2010Page:20408 / 37523



Extension Housing RWD — 2010 Hummer H3 Base, Automatic Service Manual

Extension Housing RWD

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Extension Housing Inspection Areas - RWD
    GM881221Courtesy of GENERAL MOTORS CORP.
  1. Clean the extension housing in a suitable cleaning solvent and air dry.
  2. CAUTION: Refer to Machined Surface Damage Caution .
  3. Remove the sealer from the extension sealing surfaces.
  4. Inspect the extension for being broken or cracked.
  5. Inspect the rear bushing (6) for wear or damage. The bushing is serviced only with the extension housing.
  6. Inspect the shift shaft bushings (297) for excessive wear.
  7. Replace the extension if any of the above conditions are found.
  8. Inspect the sealing surfaces for damage.
  9. Repair small scratches or nicks with a soft stone.
  10. Inspect the case threaded bolt holes for damage.
  11. Repair any damaged threads.
  12. Inspect the shift control housing location pins (523) for being loose or missing.
  13. Repair or replace any damaged location pins.
  14. Fig 2: Inspecting Reverse Control Lever Restriction Operation
    GM881170Courtesy of GENERAL MOTORS CORP.
  15. Inspect the reverse control lever restriction operation for the following conditions:
    • Moves in and out
    • Rotates
  16. Replace the reverse control lever restriction if faulty. Refer to Transmission Extension Disassemble  and Transmission Extension Assemble .