Durango 4WD V8-5.9L VIN Z (1998)
3. Install worm shaft in the rack piston and align worm shaft spiral groove with rack piston ball guide hole.
CAUTION: The rack piston balls must be installed alternately into the rack piston and ball guide. This maintains worm shaft preload. There are
12 black balls and 12 silver (Chrome) balls. The black balls are smaller than the silver balls.
4. Lubricate and install rack piston balls through return guide hole while turning worm shaft COUNTERCLOCKWISE.
5. Install remaining balls in guide using grease to hold the balls in place.
6. Install the guide onto rack piston and install clamp and clamp bolts. Tighten bolts to 58 Nm (43 ft. lbs.).
7. Insert Arbor C-4175, or equivalent into bore of rack piston and hold tool tightly against worm shaft.
8. Turn the worm shaft COUNTERCLOCKWISE while pushing on the arbor. This will force the rack piston onto the arbor and hold the rack piston
balls in place.
9. Install the races and thrust bearing on the worm shaft and install shaft in the housing.
10. Install the stub shaft with spool valve, thrust support assembly and adjuster nut in the housing.
11. Install the rack piston and arbor tool into the housing.
12. Hold arbor tightly against worm shaft and turn stub shaft CLOCKWISE until rack piston is seated on worm shaft.
13. Install pitman shaft and side cover in the housing.
14. Install rack piston plug and tighten to 150 Nm (111 ft. lbs.).
15. Install housing end plug.
16. Adjust worm shaft thrust bearing preload and over-center rotating torque.
