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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 219 (Power Steering System) >> Repair Instructions >> Steering Gear Stub Shaft Seals and Bearing Replacement - Off Vehicle >> Assembly Procedure

Assembly Procedure

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CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
  1. Install the hex lock nut (1) onto the pinion while holding the valve stub shaft.

    Tighten 

    Tighten the nut to 30 N.m (22 lb ft).

  2. Install the dust cover (2) to the rack and pinion gear assembly.
    Fig 1: Installing Hex Lock Nut & Dust Cover
    G01217202Courtesy of GENERAL MOTORS CORP.
  3. Install the stub shaft bearing annulus assembly (1) onto the valve stub shaft (2).
    Fig 2: Installing Stub Shaft Bearing Annulus Assembly
    G01217203Courtesy of GENERAL MOTORS CORP.
  4. Install J-29810  onto the valve stub shaft.
  5. Lubricate the stub shaft seal (3) with grease.
  6. Install the stub shaft seal (3) into the rack and pinion gear assembly.
  7. Install the retaining ring (2) into the groove in the rack and pinion gear assembly.
  8. Install the spool shaft boot (1) onto the rack and pinion gear assembly.
    Fig 3: Installing J-29810 Onto Valve Stub Shaft
    G01217204Courtesy of GENERAL MOTORS CORP.
  9. Lubricate the following items with lithium base grease:
    1. The rack bearing (2)
    2. The adjuster spring (3)
    3. The adjuster plug (4)
  10. Install the following items into the gear assembly:
    1. The rack bearing (2)
    2. The adjuster spring (3)
    3. The adjuster plug (4)
      Fig 4: Installing Rack Bearing, Adjuster Spring & Adjuster Plug
      G01217205Courtesy of GENERAL MOTORS CORP.
  11. Turn the adjuster plug (1) clockwise onto the rack and pinion gear assembly until the adjuster plug (1) bottoms in the rack and pinion gear assembly, then turn the adjuster plug (1) back 50 degrees to 70 degrees.
  12. Check the rotational torque on the pinion. The maximum pinion preload torque is 1.8 N.m (16 lb in).
    Fig 5: Turning Adjuster Plug
    G01217206Courtesy of GENERAL MOTORS CORP.
  13. Install the adjuster plug lock nut (5) to the adjuster plug (4).

    Finger tighten the adjuster plug lock nut (5) while holding the adjuster plug (4) stationary.

    Tighten 

    Tighten the nut to 68 N.m (50 lb ft).

  14. Install the steering gear into the vehicle, refer to Power Steering Gear Replacement (Non-Rack and Pinion)  or Power Steering Gear Replacement (Rack and Pinion)  .

    Important:  Flush and bleed power the steering system (hoses, reservoir and cooler lines) with power steering fluid GM P/N 1050017 (Canadian P/N 992646) (or equivalent meeting GM Specification number 9985010).

  15. Refer to Bleeding the Power Steering System .
    Fig 6: Installing Adjuster Plug Lock Nut
    G01217207Courtesy of GENERAL MOTORS CORP.
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