REMOVAL & INSTALLATION
Pick-Up and Ramcharger
- Place the wheels in the straight-ahead position.
- Remove the windshield washer solvent reservoir and the coolant overflow tank, if necessary.
- Position a drain pan under the steering gear.
- Disconnect the fluid hoses from the gear and plug them.
- Raise and safely support the vehicle on jackstands. Matchmark and remove the pitman arm.
- Disconnect the steering column shaft from the stub shaft.
- Remove the retaining bolts and remove the steering gear from the vehicle.
- Installation is the reversal of the removal procedure. Tighten the pitman arm nut to 175 ft. lbs. (237 Nm).
- Disconnect the negative battery cable.
- Raise and safely support the vehicle on jackstands. Center the steering.
- Disconnect the pitman arm from the center link.
- Disconnect and plug the pressure and return hoses.
- Disconnect the steering gear-to-shaft coupling.
- Remove the steering gear mount bolts and remove the gear from the vehicle.
- Matchmark and remove the pitman arm from the sector shaft.
- Installation is the reverse of the removal procedure. Tighten the pitman arm nut to 175 ft. lbs. (237 Nm) and the mount bolts to 100 ft. lbs. (136 Nm). Refill the power steering pump.
If the vehicle wanders of the steering has too much play, the sector shaft can be adjusted as follows:
- Loosen the adjusting screw locknut and turn the screw all the down.
- Back the screw off 1 / 4 - 1 / 2 turn.
- Tighten the locknut.
- Road test the vehicle. If the steering wheel does not return easily after a turn, back the screw off until the wheel returns easily.
- Remove the steering gear arm and lockwasher from the sector shaft with a suitable gear puller.
- Remove the horn button or horn ring.
- Loosen the sector shaft adjusting screw locknut and back out the adjusting screw about two turns.
- Turn the steering wheel two complete turns from the straight-ahead position and place an inch pound/Nm torque wrench on the steering wheel shaft nut.
- Rotate the steering shaft at least one turn toward the straight-ahead position while measuring the torque on the wrench. The torque value should be between 4-6 inch lbs. (0.45-0.68 Nm) to move the steering wheel. If torque is not within specifications, loosen the wormshaft bearing adjuster locknut and turn the adjuster clockwise to increase the preload, or counterclockwise to decrease it. When the preload is correct, hold the adjuster screw steady and tighten the locknut. Recheck the preload.
This adjustment can be accurately made only after proper preloading of the worm bearing.
- Turn the steering wheel gently lock-to-lock and count the number of turns. Turn the steering wheel back exactly half way to the center position.
- Turn the sector shaft adjusting screw clockwise to remove all lash between the ball nut rack and the sector bear teeth, then tighten the adjusting screw locknut to 35 ft. lbs. (47 Nm).
- Turn the steering wheel about 1 / 4 turn away from the center or high spot position. With the torque wrench on the steering wheel nut, measure the torque required to turn the steering wheel through the high spot at the center position. The reading should be between 8-11 inch lbs. (0.90-1.24 Nm). This is the total of the worm shaft bearing preload and the ball nut rack and sector gear mesh load. Re-adjust the sector shaft adjustment screw if necessary to obtain a correct torque reading.
- After completing the adjustments, place the front wheels in a straight-ahead position and, with the steering wheel and steering gear centered, install the steering arm on the sector shaft. Tighten the steering arm retaining nut to 175 ft. lbs. (238 Nm).