Express 1/2 Ton Van V6-4.3L VIN W (1999)
IMPORTANT: The black rack piston balls are smaller than the silver rack piston balls. Install the black and the silver rack piston balls
alternately into the rack piston and the ball guide to maintain the rack piston to the worm shaft preload.
Lubricate the rack piston balls with power steering fluid.
5. Insert the rack piston balls through the ball return guide hole (1) while turning worm shaft (2) counterclockwise in order to install the rack piston
balls into the rack piston.
6. Install the remaining rack piston balls (3) into the ball guide (1) using grease at each end (2) to retain the rack piston balls (3).
7. Install the ball guide (5) to the rack piston (4).
8. Install the ball guide clamp (6).
NOTICE: Refer to Fastener Notice In Service Precautions
9. Install the screws (7).
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Tighten the screws (7) to 58 Nm (43 inch lbs.).
10. Insert J 21552 into the bore of the rack piston while turning the worm shaft counterclockwise. The turning of the worm shaft forces the rack piston
onto J 21552. The rack piston balls remain in place.
