REMOVAL & INSTALLATION
See Figures 1 and 2
- Raise and support the front end on jackstands.
- Remove the wheel.
- Remove the caliper and suspend it out of the way.
- Remove the brake disc.
- If necessary, remove the left stabilizer bar clamp.
- If necessary, remove the left stabilizer bar bolt, spacer and bushings at the lower control arm.
- Disconnect the tie rod end from the knuckle or steering relay rod.
- Remove the hub nut and washer.
- Using a puller, force the outer end of the drive axle out of the hub. Remove the hub/bearing assembly.
- Remove the drive axle.
- Support the lower control arm with a floor jack.
- Unbolt and remove the splash shield.
- Remove the upper and lower ball joint nuts and cotter pins. Using a screw-type forcing tool, separate the upper, then the lower, ball joint from the knuckle.
- Remove the knuckle and old seal.
- Installation is the reverse of removal, but please note the following important steps.
- Drive a new seal into the knuckle using installer tool J-36605 or its equivalent.
- Attach the ball joints to the knuckle and tighten to specifications.
- Tighten the splash shield bolts to 12 ft. lbs. (16 Nm) on 1988-90 models; 19 ft. lbs. (26 Nm) on 1991-98 models.
- Position the axle shaft and install the flange bolts. Tighten them to 59 ft. lbs. (79 Nm).
- Lower the truck. Once the weight of the truck is on the wheels perform the following height adjustment procedure.
- Lift the front bumper about 38mm and let it drop.
- Repeat this procedure 2 or 3 more times.
- Draw a line on the side of the lower control arm from the centerline of the control arm pivot shaft, dead level to the outer end of the control arm.
- Measure the distance between the lowest corner of the steering knuckle and the line on the control arm. Record the figure.
- Push down about 38mm on the front bumper and let it return. Repeat the procedure 2 or 3 more times.
- Re-measure the distance at the control arm.
Determine the average of the 2 measurements. The average distance should be:
K15/25 without F60 option: 151-163mm
- When the adjustment is correct, tighten the control arm pivot nuts to specification. If the adjustment is not correct, tighten the pivot bolts to specification and have the alignment checked.