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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 485 (Power Steering System) >> Repair Instructions >> Steering Gear Pitman Shaft Seal and Bearing Replacement - Off Vehicle >> Disassembly Procedure

Disassembly Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the steering gear. Refer to Steering Gear Replacement (Recirculating Ball Without LMM) , Steering Gear Replacement (HP2) , Steering Gear Replacement (Hydraulic Rack and Pinion) .
    2. Fig 1: Pitman Arm, Steering Gear, Steering Gear Housing And Pitman Arm Boot
    GM740399Courtesy of GENERAL MOTORS COMPANY
  2. Remove the steering gear pitman shaft and housing cover. Refer to Steering Gear Pitman Shaft Replacement .
  3. Remove the pitman arm (4) from the steering gear (1). Refer to Pitman Arm Replacement .
  4. Remove the pitman arm boot (3) from the steering gear housing (1).
    5. IMPORTANT:

    Do not score the steering gear housing bore when prying out the seals and washers.

  5. Remove the dust seal (2) from the steering gear housing (1).
    6. Fig 2: View Of Pitman Shaft Retaining Ring & J 4245
    GM412380Courtesy of GENERAL MOTORS COMPANY
  6. Remove the steering gear pitman shaft seal retaining ring (2) from the steering gear housing (1) using J 4245  internal snap ring pliers.
    7. Fig 3: Identifying Steering Gear Housing Components
    GM412382Courtesy of GENERAL MOTORS COMPANY
  7. Remove the steering gear pitman shaft washer (3) from the steering gear housing (1).
  8. Pry the steering gear pitman shaft seal (2) from the steering gear housing (1) using a screwdriver.
  9. Inspect the housing for burrs and replace if necessary.
    10. Fig 4: View Of Needle Bearing & Steering Gear Housing
    GM412383Courtesy of GENERAL MOTORS COMPANY
  10. Insert J 6278  pitman shaft bearing remover and installer through the hole in the top of the steering gear housing (1).
  11. Drive out the steering gear pitman shaft bearing (2) from the steering gear housing (1).
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