Express 1/2 Ton Van V6-4.3L VIN W (1999)
-
The rack piston balls (5)
-
J 21552
8. Remove the valve. Refer to Steering Gear Valve Replacement - Off Vehicle.
9. Remove the worm shaft (14).
10. Remove the thrust bearing (12) and the flat races (11) (13).
11. Remove the flat races (11).
12. Remove J21552from the rack piston (4).
13. Remove the rack piston balls (5).
14. Remove the following items from the rack piston (4):
14.1.
The screws (8)
14.2.
The clamp (7)
14.3.
The ball guide (6)
15. Remove the Teflon ring (2).
16. Remove the O-ring seal (3).
17. Clean all of the disassembled parts.
18. Inspect all of the disassembled parts for wear.
19. Replace the parts if necessary.
ASSEMBLY PROCEDURE
-
Tools Required
-
J 8947 Rack Piston Teflon Ring Compressor
-
J 21552 Rack Piston Arbor
1. Install the O-ring seal (3) and the Teflon ring (2).
2. Lubricate both parts with power steering fluid.
3. Install the worm shaft (14) to the rack piston (4) outside of the steering gear housing (9).
IMPORTANT: Reinstall all of the rack piston balls in the rack piston. Improper rack piston ball installation may result in personal injury.
Fully seat the worm shaft to the rack piston.
4. Align the worm shaft spiral groove with the rack piston ball return guide hole (1).
