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HOMESERVICE MANUALSCHEVROLET1992SPORTVAN G10, 5.7 KREPAIR AND DIAGNOSIS (SINGLE PAGE)STEERINGPOWER STEERINGSTEERING SYSTEM - POWEROVERHAULRACK PISTON BALLSREASSEMBLY
1992 Chevrolet Sportvan G10, 5.7 K

Rack Piston Balls: Reassembly

1992 Chevrolet Sportvan G10, 5.7 KSECTION Reassembly
  1. Lubricate seals and ring with power steering fluid and carefully install onto rack piston. Install worm shaft into rack piston until worm shaft touches piston shoulder. While turning worm shaft counterclockwise, insert ball bearings into rack piston.
    NOTE: Ensure light and dark colored balls are installed alternately; Black balls are .0005" (.013 mm) smaller than Silver balls.
  2. Install 6 balls in ball guide, alternating ball colors. Bearings in guide must be in sequence with bearings in rack piston. Hold balls in place with chassis lubricant. Install return ball guide assembly into position.
  3. Install clamp. Tighten clamp screws. See Fig 1 . Insert Rack Piston Arbor (J-21552) into rack piston until it contacts worm shaft. Maintain pressure on arbor, and back worm shaft out of rack piston. DO NOT  allow ball bearings to drop out.
Fig 1: Installing Ball Bearing Into Rack Piston
G117438Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.