REMOVAL & INSTALLATION
1970-85 Pick-Up and 4Runner-4WD
See Figures 1, 2, 3 and 4
- Set the control handle in the free position.
- Remove the bolts in the hub and remove the hub and gasket.
- Remove the nuts, spring washers, and cone washers.
Cone washers can be removed by using a tapered punch.
- Remove hub body and gasket.
- Remove snapring from free wheel hub body.
- Remove hub ring, spacer and inner hub.
- Remove compression spring, follower, tension spring, and clutch.
- Remove snapring, free wheel hub cover ball and spring, seal, and control handle.
Check inner hub and free wheel hub ring oil clearance. Clearance should be 0.30mm.
- Disconnect the brake line and the two bolts holding the brake caliper.
- Remove the dust cap and snapring.
- Remove the cone washers with a tapered punch.
- Remove the flange by installing two bolts in the special holes for flange removal. Tighten these bolts until the flange comes loose. Remove the bolts by loosening them and remove the flange.
- Remove the locknut, washer, and adjusting nut. Pull the rotor assembly off the spindle. The outer and inner bearings and seal will come apart as a unit.
- Set the rotor on two blocks of wood. Using a drift pin drive the seal out. The inner bearing will drop out at this time. Using this pin drive the front and rear race from the rotor.
- Place the rotor in a vice and remove the front axle hub.
- Inspect the rotor, spindle and hub for damage.
- Remove the dust seal, gasket, and dust cover.
- Remove the spindle and gasket.
- Position the flat part of the outer shaft up and pull out the shaft.
- Remove the oil seal retainer.
- Remove the cone type washers from the drag link with a tapered punch.
- Remove the drag link and tie rod.
- Remove the bottom bearing cap and shim.
- Remove the upper and lower bearings with the proper tool.
The steering knuckle bearing remover is available from your Toyota dealer. Part #09606-60010. Remember to mark the bearings in order to reassemble them in their proper place:
- Remove the upper and lower races with a brass drift pin.
- Remove the steering knuckle and inspect for damage or wear.
- Place the inner shaft in a vice. Using a drift pin drive the outer shaft apart and remove six ball bearings.
Tilt the inner race and cage. Take the balls out one at a time.
- Remove the cage and race from the shaft.
Turn the large opening in the cage against the protruding portion of the shaft, pull the race and cage out.
- Remove the inner race from the cage through the large opening.
- Remove the inner oil seal. Thoroughly wash and inspect all parts for wear or damage.
- Replace all oil and grease seals.
- Pack the hub interior, inner and outer bearings with a multipurpose grease.
See Figures 5 and 6
- Raise the front of the vehicle and support on safety stands. Remove the wheel.
- Remove the free-wheeling or automatic locking hub.
- Disconnect and plug the brake line at the disc and wire it out of the way.
- Remove the brake caliper.
- Pop off the axle nut lock washer and remove the nut and washer. Remove the adjusting nut. Remove the axle hub/brake disc as an assembly along with the outer wheel bearing.
- Pry out the oil seal and remove the inner bearing from the hub.
- Loosen the 6 axle shaft-to-differential housing nuts.
This may require that a friend steps on the brake pedal.
- Remove the snapring and spacer from the end of the axle shaft.
- Separate the inboard axle shaft flange from the side gear shaft and then remove the shaft down and through the steering knuckle.
- Coat the outboard end of the axle shaft with molybdenum disulfide lithium based grease.
- Insert the outboard end of the shaft into the steering knuckle and then install it to the differential. Handtighten the bolts.
- Install the spacer and a new snapring.
- Depress the brake pedal and tighten the inner mounting nuts to 61 ft. lbs. (83 Nm).
- Pack the inner axle bearing with grease and press it into the hub. Coat a new oil seal with grease and press it into the hub.
- Position the axle hub/brake disc assembly on the steering knuckle and press in the outer bearing.
- Tighten the bearing adjusting nut to 43 ft. lbs. (59 Nm) and spin the hub a few times. Loosen the nut and then retighten it to 18 ft. lbs. (25 Nm).
- Use a tension gauge and check that the bearing preload is 6.4-12.6 lbs.
- Install a new locknut and washer and tighten to 58 ft. lbs. (78 Nm). Check that the bearing has no axial play. Secure the locknut by bending one of the washer teeth inward and another outward.
- Install the free-wheeling or automatic hub.
- Install the brake caliper and line. Install the wheel, lower the vehicle and bleed the brakes. Road test the truck.
- Raise and support the vehicle securely and remove the wheel assembly.
- Plug the brake master cylinder reservoir to prevent brake fluid leakage from the disconnected brake flexible hose.
- Remove the outer axle shaft flange cap, and then remove the shaft snapring on the outer shaft.
- Remove the bolts retaining the outer axle shaft flange onto the front axle hub, and then, screw service bolts into the shaft flange alternately, and remove the shaft flange with its gasket.
- Remove the brake drum set screws and remove the brake drum. If equipped with disc brakes, remove the caliper and disc.
- Straighten the lockwasher, and remove the front wheel bearing adjusting nuts with front wheel adjusting nut wrench or similar tool.
- Remove the front axle hub together with its claw washer, bearings, and oil seal.
- Remove the clip and disconnect the brake flexible hose from the brake tube.
- Cut and remove the lock wire and remove the bolts retaining the brake backing plate onto the steering knuckle. Remove the brake backing plate together with the brake shoes, tension spring, and the wheel cylinder still assembled to the backing plate.
- Tap the steering knuckle spindle lightly with a soft mallet, and remove the spindle with its gasket.
When removing the steering knuckle spindle on a vehicle equipped with the ball joint type axle shaft joint, be prepared for the disconnection of the outer axle shaft from the joint. The joint ball will fall from the joint. Try to cushion its fall or catch it if you can.
- On those models equipped with the ball type axle shaft joint, slide the inner front axle shaft out of the axle housing. On those models equipped with the Birfield constant velocity joint type of axle joint, remove the entire axle shaft assembly from the axle housing.
- Remove bushing from inside of knuckle spindle with a bearing puller. Install new bushing using a metal tube as a seating tool.
- Remove axle housing oil seal with a bearing puller. To install, use a metal tube as a seating tool.
- Install the axle shaft in the reverse order of removal. On those models equipped with the ball joint type axle joint, install the inner axle with its proper spacer in position until the splines are fully meshed with the differential side gear splines. Next, fill the steering knuckle three quarters full with grease and place the joint ball on the inner shaft end. Install the outer shaft and the front axle shaft spacer into the steering knuckle spindle and install the spindle with its gasket onto the steering knuckle.
- On those models equipped with the Birfield constant velocity joint axle joint, install the axle into the housing and rotate the axle shaft until its splines mesh with the splines in the differential. Fill the steering knuckle housing three quarters full with grease and install the steering knuckle spindle.
- Adjust the wheel bearing preload.