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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 85 (Transfer Case - ISUZU T150) >> Repair Instructions >> Cleaning and Inspection >> Front Case Half

Front Case Half

WARNING: This page is about a different car, the 2007 Isuzu i-370, 2007 GMC Canyon, and 2007 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Locating Inspection Points in Front Case
    GM909428Courtesy of GENERAL MOTORS CORP.
  1. Clean the front case half in cleaning solvent and air dry.
  2. Remove the sealer from the case sealing surfaces.
  3. Inspect the case for being broken or cracked.
  4. Inspect the front output shaft front bearing bore (a) for the following conditions:
    • A spun bearing
    • Cracks
  5. Inspect the planetary carrier bearing bore (c) for the following conditions:
    • A spun bearing
    • Cracks
  6. Inspect the case annulus gear notches (b) for wear.
  7. Replace the front case half 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 front case to transmission case mounting surface for damage.
  11. Inspect the case threaded bolt holes for damage.
  12. Repair any damaged threads.
  13. Inspect the location pins (21) for being loose or missing.
  14. Repair or replace any damaged location pins.
  15. Inspect the breather pipe and vent hose pipes (5 and 7) for damage or leaking.
  16. Replace the pipes if faulty. Refer to Transfer Case Disassemble  and Transfer Case Assemble .
  17. Inspect the control actuator shaft bushing (206) for excessive wear.
  18. Replace the control actuator shaft bushing if faulty. Refer to Transfer Case Disassemble  and Transfer Case Assemble .
  19. Inspect the front output shaft front bearing for the following conditions:
    • Roughness
    • Brinelling
    • Pitting
  20. Replace the bearing if any of the above conditions are found. Refer to Transfer Case Disassemble  and Transfer Case Assemble .