REMOVAL & INSTALLATION
See Figures 1, 2 and 3
- Raise and support the front end on jackstands.
- Remove the wheels.
- Remove the caliper and suspend it out of the way (see Brakes s).
- Remove the hub and rotor assembly (see Brakes ).
- Remove the inner bearing and seal. Discard the seal.
- Remove the dust shield.
- Remove the cotter pin and nut, and, using a ball joint separator-the forcing screw type, not the fork type-disconnect the tie rod end from the spindle arm.
- On stripped chassis and motor home models, disconnect the drag link from the steering arm using a forcing type ball joint separator.
- Remove the nut and washer from the spindle bolt lock pin and remove the lock pin.
- Remove the upper and lower spindle pin plugs.
- Using a brass drift, drive out the spindle pin from the top and remove the spindle and thrust bearing.
- Remove the thrust bearing and seal.
- Clean the spindle pin bore and make sure it is free of corrosion, nicks or burrs. Light corrosion and other irregularities can be removed.
- Lightly coat the bore with lithium based grease meeting ESA-M1C75-B rating.
- Install a new spindle pin seal with the metal side facing up into the spindle. Gently press the seal into position being careful to avoid distorting it.
- Install a new thrust bearing with the lip flange facing downward. Press the bearing in until firmly seated against the surface of the spindle.
- Lightly coat the bushing surface with lithium based grease and place the spindle on the axle.
- Hold the spindle, with the thrust bearing in place, tightly against the axle, and measure the space between the axle and spindle at the top of the axle. Determine what thickness of shims is necessary to eliminate all play. Install the shims, available from the dealer.
- One end of the spindle pin is stamped with a T . Install the spindle pin, from the top, with the T at the top and the notch aligned with the lock pin hole.
- Install the lock pin with the threads forward and the wedge groove facing the spindle pin notch. Drive the lock pin in all the way and install the nut. Tighten the nut to 40-50 ft. lbs. (54-68 Nm).
- Install the spindle pin plugs. Tighten them to 35-50 ft. lbs. (47-68 Nm).
- Lubricate the spindle pin through the fittings until grease seeps past the upper seal and the thrust bearing slip joint at the bottom. If grease can't be forced past these points, the installation was probably done incorrectly and will have to be disassembled and re-assembled.
- Install the dust shield.
- Clean, pack and install the bearings. Install a new seal (see Routine Maintenance ).
- Install the hub and rotor assembly (see Brakes ).
- Install the caliper (see Brakes ).
- Connect the tie rod end and, if necessary, the drag link. Tighten the nuts to 50-70 ft. lbs. (68-95 Nm). Always advance the nut to align the cotter pin holes. NEVER back them off! Always use new cotter pins!
- Install the wheels.
BRONZE SPINDLE BUSHING REPLACEMENT
See Figures 4, 5, 6, 7 and 8
- Remove the spindle and secure it in a bench vise.
The bushings have an inside diameter of 1.301-1.302 in. (33.05-33.07mm). Use the following tools or their equivalents:
- Remove and discard the seal from the upper bushing bore.
- Working on the upper bushing first, install the driver handle through the bottom bore. Position a new bushing on the T side of the tool. The bushing must be positioned so that the open end grooves will face outward when installed. Position the bushing and tool over the old bushing, insert the handle and drive out the old bushing while driving in the new bushing. Continue driving until the tool is fully seated. The new bushing should then be seated at the proper depth of 0.08 in. (2.03mm) minimum from the bottom of the upper spindle boss.
- Working on the bottom bushing, position the driver handle through the top bushing bore. Position a new bushing on the B side of the tool. The bushing must be positioned so that the open end grooves will face outward when installed. Position the bushing and tool over the old bushing, insert the handle and drive out the old bushing while driving in the new bushing. Continue driving until the tool is fully seated. The new bushing should then be seated at the proper depth of 0.13 in. (3.3mm) minimum from the top of the lower spindle boss.
- Ream the new bushings to 0.001-0.003 in. (0.025-0.076mm) larger than the diameter of the new spindle pin. Ream the top bushing first. Install the smaller diameter of the reamer through the top bore and into the bottom bore until the threads are in position is the top bushing. Ream the bushing until the threads exit the top bushing. Ream the bottom bushing. The larger diameter portion of the tool will act as a pilot in the top bushing to properly ream the bottom bushing.
- Remove the tool and thoroughly clean all metal shavings from the bushings and surrounding parts. Coat the bushings and spindle pins with grease meeting specification ESA-M1C75-B.
- Install a new seal on the Remover/Installer on the T side. Using the handle, push the seal into position in the bottom of the top bore.