Radius Arm: Service and Repair
2WD MODELS1. Remove coil spring.
2. Remove spring lower seat from radius arm.
3. Remove radius arm and stabilizer bracket (if equipped) attaching nut and bolt from axle.
4. On all except E-Series models, remove nut, rear washer, insulator and spacer from rear side of radius arm rear bracket.
5. On all models, remove radius arm from vehicle.
6. On E-Series models, remove spacer, inner insulator and retainer from radius arm stud.
7. On all models, reverse procedure to install.
F-150 4WD MODELS & BRONCO
1. Raise and support vehicle under frame side rails.
2. Remove shock absorber to lower bracket attaching bolt and nut and separate shock from radius arm.
3. Remove spring lower retainer attaching bolt(s) from inside coil spring.
4. Loosen axle pivot bolt.
5. Remove radius arm to frame bracket attaching nut, then the radius arm rear insulator and spacer (if equipped).
6. Lower axle and slide it forward. The axle must be supported and not be permitted to hang by brake hose. If length of brake hose is not sufficient to provide adequate clearance, it will be necessary to remove the disc brake caliper. Do not suspend caliper by brake hose, if removed.
7. Remove axle to radius arm bracket attaching screws, then the radius arm to axle attaching bolt and stud.
8. Move axle forward and remove radius arm from axle, then pull radius arm from frame bracket.
9. Reverse procedure to install.