Ford Ranger/Bronco II 1983-1990 Repair Guide
Upper Ball Joint
Check and adjust the front wheel bearings. Raise the vehicle and position a jackstand under the I-beam axle beneath the coil spring.
Have a helper grasp the lower edge of the tire and move the wheel assembly in and out.
While the wheel is being moved, observe the upper spindle arm and the upper part of the axle jaw.
in. (0.8mm) or greater movement between the upper part of the axle jaw and the upper spindle arm indicates that the upper ball joint must be replaced
REMOVAL & INSTALLATION
Raise and support the vehicle safely, with jackstands.
Remove the spindle and the ball joint assembly from the vehicle.
Remove the snapring from the ball joint. Using a ball joint removal tool, remove the ball joint from the spindle. Do not heat the ball joint or the axle to aid in removal.
Installation is the reverse of the removal procedure. Torque the ball joint stud nut to 85-110 ft. lbs. for 1983-89 Ranger and Bronco II.