Air Suspension Models
- If angle is not within specification, new upper control arms equipped with adjustable cams must be installed. On models with air suspension, turn air suspension switch off. Switch is located on left side of vehicle trunk.
- Raise vehicle. Disconnect rear height sensor from side arm while pulling spring clip backward. Note sensor bracket position for reassembly. On all models, raise vehicle on hoist and support rear axle and pinion nose.
- Remove upper control arm-to-axle pivot bolt and arm-to-frame pivot bolt. Remove upper control arm. Install flat screwdriver in eccentric inner sleeve (accessible through attaching bolt hole). See Fig 1
.
Courtesy of FORD MOTOR CO.
- Rotate cams an equal amount clockwise to raise or counterclockwise to lower pinion angle. Ensure both upper arms are positioned the same.
- Install control arm using new pivot bolts and nuts. Nuts on frame end of control arm must face outward and nuts on axle end must face inward. DO NOT
tighten at this time.
- On coil spring suspension models, raise rear suspension to curb height and tighten pivot bolts. Recheck universal joint angle.
- On air suspension models, reinstall rear height sensor on side arm and position adjustment bracket at previous position. Raise rear suspension to riding height and tighten control arm pivot bolts. Remove support from axle, lower vehicle and turn on air suspension switch.