K 1500 Truck 4WD V8-5.3L VIN T (2000)
14. Install the worm shaft (4) to the steering gear housing (3).
15. Install the valve. Refer to Steering Gear Valve Replacement - Off Vehicle.
16. Install the rack piston (2) to the worm (4) from J 21552 using J 8947 to compress the seals.
Important: Reinstall all of the rack piston balls into the rack piston. Improper rack piston ball installation may result in personal injury.
17. Hold J 21552 tightly against the worm shaft (4).
18. Turn the stub shaft clockwise until the rack piston (2) is seated on the worm shaft (4).
19. Install the rack piston plug.
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Tighten the rack piston plug to 150 Nm (111 ft. lbs.).
20. Install the housing end plug (1). Refer to Steering Gear Housing End Plug Replacement - Off Vehicle.
21. Install the pitman shaft and side cover. Refer to Steering Gear Pitman Shaft and Housing Cover Replacement - Off Vehicle (700 Gear) or Steering
Gear Pitman Shaft and Housing Cover Replacement - Off Vehicle (670 Gear).
22. To adjust the steering gear, refer to:
22.1. Worm Thrust Bearing Preload Adjustment - Off Vehicle
22.2. Pitman Shaft Over-Center Preload Adjustment- Off Vehicle
670 Gear
Disassembly Procedure
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Tools Required
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J 21552 Rack Piston Arbor
1. Remove the pitman shaft and side cover assembly. Refer to Steering Gear Pitman Shaft and Housing Cover Replacement - Off Vehicle (700 Gear)
or Steering Gear Pitman Shaft and Housing Cover Replacement - Off Vehicle (670 Gear).
2. Remove the pitman seals and bearing. Refer to Pitman Shaft Seals and Bearing Replacement - Off Vehicle (700 Gear) or Pitman Shaft Seals and
Bearing Replacement - Off Vehicle (670 Gear).
3. Remove the stub shaft housing assembly. Refer to Stub Shaft Housing Replacement.
4. Turn the stub shaft counterclockwise until the rack piston (1) begins to come out of the steering gear housing.
5. Insert J 21552 into the bore of the rack piston (2).
6. Hold J 21552 tightly against the worm shaft while turning the stub shaft counterclockwise. Turning the stub shaft forces the rack piston (1) onto
J21552. The rack piston balls remain in place.
