Step by step ball joint replacement on 1987 F250 4x4?

To replace the ball joints on a 1987 F250 4x4, start by safely lifting the vehicle and removing the front wheel. Next, disconnect the brake caliper and rotor, then remove the tie rod end and lower control arm. Use a ball joint press to remove the old ball joints from the control arm and install the new ones. Finally, reassemble all components, ensuring everything is torqued to specification, and repeat on the other side if necessary.