Raise and support the front end on jackstands under the frame.
Using a floor jack, raise the lower control arm until the upper control
arm is off the bumper stop.
Remove the wheel.
Place a chain through the coil spring as a safety measure, or install a
spring compressor.
Remove the cotter pin and nut retaining the upper ball joint.
Using a ball joint separator, disconnect the ball joint from the spindle.
Working under the hood, remove the two upper arm retaining bolts and lift
the arm from the truck. Note the number and position of any shims.
Installation is the reverse of removal. Place the shims in their original
locations. Torque the two arm retaining bolts to 65–75 ft. lbs.; the
ball joint-to-arm bolts to 15–20 ft. lbs.; the ball joint-to-spindle
nut to 40–55 ft. lbs.
Raise and support the front end on jackstands placed under the frame.
Remove the wheels. Support the lower arm with a floor jack.
Remove the cotter pin and nut from the upper ball joint and separate the
ball joint from the upper arm using a ball joint separator tool.
Remove the bushings and dust seals from the ends of the upper arm shaft.
Remove the nuts and bolts that retain the upper arm shaft to the support
bracket. Note the number and location of the shims under the nuts. These must
be installed in their exact locations for proper wheel alignment. Check all
parts for wear or damage. Replace any suspect parts. Check the ball joint
preload with a pull scale and adapter 49 0180 510B. Shake the ball joint stud
a few times to make sure that it is free, then take the reading. The pull
scale reading should be 40 lb. or less.
Installation is the reverse of removal. Torque the upper arm shaft mounting
bolts to 60–68 ft. lbs.; the ball joint nut to 30–37 ft. lbs.
