See Figure 1
The manual rack and pinion gear provides two means of service adjustment. The gear must be removed from the vehicle to perform both adjustments.Support Yoke-to-Rack
See Figure 2
- Clean the exterior of the steering gear thoroughly and mount the gear by installing two long bolts and washers through the mounting boss bushings and attaching to a bench mounted holding fixture, tool T57L-500-B, or equivalent.
- Remove the yoke cover, gasket, shims, and yoke spring.
- Clean the cover and housing flange areas thoroughly.
- Reinstall the yoke and cover, omitting the gasket, shims, and the spring.
- Tighten the cover bolts lightly until the cover just touches the yoke.
- Measure the gap between the cover and the housing flange. With the gasket, add selected shims to give a combined pack thickness 0.005-0.006 inches (0.13-0.15mm) greater than the measured gap.
- Remove the cover.
- Assemble the gasket next to the housing flange, then the selected shims, spring, and cover.
- Install the cover bolts, sealing the threads with ESW-M46-132A or equivalent, and tighten.
- Check to see that the gear operates smoothly without binding or slack.
See Figure 3
- Clean the exterior of the steering gear thoroughly and place the gear in the bench mounted holding fixture as outlined under Support Yoke-to-Rack Adjustment.
- Loosen the bolts of the yoke cover to relieve spring pressure on the rack.
- Remove the pinion cover and gasket. Clean the cover flange area thoroughly.
- Remove the spacer and shims.
- Install a new gasket, and fit shims between the upper bearing and the spacer until the top of the spacer is flush with the gasket. Check with a straightedge, using light pressure.
- Add one shim, 0.0025-0.0050 in. (0.0635-0.1270mm) to the pack in order to preload the bearings. The spacer must be assembled next to the pinion cover.
- Install the cover and bolts.
REMOVAL & INSTALLATION
- Disconnect the negative battery cable.
- Remove the one bolt retaining the flexible coupling to the input shaft.
- Leave the ignition key in the ON position, and raise the vehicle on a hoist.
- Remove the two tie rod end retaining cotter pins and nuts. Separate the studs from the spindle arms, using the ball joint separator tool. Do not use a hammer or similar tool as this may damage spindle arms or rod studs.
- Support the steering gear, and remove the two nuts, insulator washers, and bolts retaining the steering gear to the No. 2 crossmember.
- Remove the steering gear assembly from the vehicle.
- Insert the input shaft into the flexible coupling, aligning the flats, and position the steering gear to the No. 2 crossmember. Install the two bolts and tighten them to 90-100 ft. lbs. (122-136 Nm).
- Connect the tie rod ends to the spindle arms, and install the two retaining nuts. Tighten the nuts to 35-47 ft. lbs. (47-64 Nm) and install the two cotter pins.
- Lower the vehicle, and install the one bolt retaining the flexible coupling to the input shaft. Tighten the bolt to 20-37 ft. lbs. (27-50 Nm).
- Turn the ignition key to the OFF position
- Connect the negative battery cable.
- Check the toe, and reset if necessary.