K 2500 Truck 4WD V8-6.5L DSL Turbo VIN S (1998)
WARNING: Make sure that all rack piston balls (25) are reinstalled in the rack piston. Improper rack piston ball installation may result
in personal injury.
CAUTION: The black rack piston balls are smaller than the silver balls. The black and silver balls must be installed alternately into the rack
piston and ball guide to maintain rack piston to worm shaft preload.
NOTE: Lubricate rack piston balls (25) with power steering fluid.
3. Rack piston balls (25) to rack piston (26) by inserting through ball return guide hole while turning worm shaft (13) counterclockwise.
4. Remaining rack piston balls (25) to ball guide (23) using grease at each end to retain balls (25).
5. Ball guide (23) to rack piston (26).
CAUTION: Always use the correct fastener in the proper location. When you replace a fastener, use ONLY the exact part number for that
application. The manufacturer will call out those fasteners that require a replacement after removal. The manufacturer will also call out the
fasteners that require thread lockers or thread sealant. UNLESS OTHERWISE SPECIFIED, do not use supplemental coatings (paints, greases, or
other corrosion Inhibitors) on threaded fasteners or fastener joint interfaces. Generally, such coatings adversely affect the fastener torque and joint
clamping force, and may damage the fastener. When you install fasteners, use the correct tightening sequence and specifications. Following these
instructions can help you avoid damage to parts and systems.
6. Ball guide clamp (22) and screws (21). Tighten the screws (21) to 58 Nm (43 inch lbs.). Insert J 21552 into bore of rack piston (26) while turning
worm shaft (13) counterclockwise. The rack piston (26) will be forced onto J 21552 and will hold the rack piston balls (25) in place.
7. Races (15 and 17) and thrust bearing (16) to worm shaft (13).
8. Worm shaft (13) to housing (20).
9. Valve.
10. Rack piston (26) to worm shaft (13) from J 21552, using J 8947 to compress seals. Hold J 21552 tightly against worm shaft and turn stub shaft
clockwise until rack piston (26) is seated on worm shaft (13).
WARNING: Make sure that all rack piston balls (25) are reinstalled in the rack piston. Improper rack piston ball installation may result
in personal injury.
11. Rack piston plug (27). Tighten (27) to 150 Nm (111 ft. lbs.)
12. Housing end plug.
13. Pitman shaft and side cover.
14. Adjust Steering gear.
15. Install or connect the steering gear.
Pitman Shaft Seals and Bearing Replacement
