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Home >> Isuzu >> 2007 >> i-290 LS, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Manual Transmission - AISIN Ar5) >> Repair Instructions >> Transmission Case Cleaning and Inspection >> Extension Housing 4WD

Extension Housing 4WD

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Locating Extension Housing Inspection Areas - 4WD
    GM873002Courtesy of GENERAL MOTORS CORP.
  1. Clean the extension housing in a suitable cleaning solvent and air dry.
  2. Remove the sealer from the extension sealing surfaces.
  3. Inspect the extension for being broken or cracked.
  4. Inspect the transfer case mounting surface (a) for damage.
  5. Inspect the sealing surfaces for damage.
  6. Repair small scratches or nicks with a soft stone.
  7. Inspect the extension threaded bolt holes for damage.
  8. Repair any damaged threads.
  9. Replace the extension if the above damages can not be repaired.
  10. Inspect the shift control housing location pins (523) for being loose or missing.
  11. Repair or replace any damaged location pins.
  12. Inspect the shift shaft bushings (297) for excessive wear.
  13. Replace the extension housing if the shift shaft bushings (297) are faulty.
  14. Inspect the shift shaft plug (65) for leaking or damage.
  15. Replace the shift shaft plug if faulty. Refer to Transmission Extension Disassemble  and Transmission Extension Assemble .
  16. Fig 2: Identifying Reverse Control Lever Restriction Operation
    GM881170Courtesy of GENERAL MOTORS CORP.
  17. Inspect the reverse control lever restriction operation for the following conditions:
    • Moves in and out
    • Rotates
  18. Replace the reverse control lever restriction if faulty. Refer to Transmission Extension Disassemble  and Transmission Extension Assemble .