REMOVAL & INSTALLATION
See Figures 1, 2, 3 and 4
Any time the control arm is removed, it is necessary to align the front end.
- Raise and support the vehicle with jackstands under the frame rails.
- Remove the wheel.
- Remove the shock absorber and shock absorber upper bushing and sleeve.
- Install a spring compressor and tighten it finger-tight.
- Remove the cotter pins and ball joint nuts.
- Install a ball joint breaker and turn the threaded portion of the tool, locking it securely against the upper stud. Spread the tool enough to place the upper ball joint under pressure and strike the steering knuckle sharply to loosen the stud. Do not attempt to remove the stud from the steering knuckle with the tool.
- Remove the tool.
- Remove the eccentric pivot bolts, after marking their relative positions in the control arm.
- Remove the upper control arm.
- Install the upper control arm.
- Install the pivot bolts and finger-tighten them for now.
- Position the spring on the control arm and install the compressor.
- Compress the spring until the ball joint is properly positioned.
- Install the ball joint nuts and tighten them to 135 ft. lbs. For 1972-74 300 series trucks, the torque is 175 ft. lbs.
- Install new cotter pins.
- Remove the spring compressor.
- Install the shock absorber. Tighten the upper end to 25 ft. lbs.; the lower end to 15 ft. lbs.
- Install the wheels.
- Lower the truck to the ground.
- Tighten the pivot bolts to 70 ft. lbs.
- Have the front end alignment checked.