Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Removal (1971-72)
Raise car and support at lower control arm (Pontiac & Oldsmobile). On Buick allow front suspension to be in full rebound position. Remove wheel and tire. Remove cotter pin from upper ball joint stud and LOOSEN, DO NOT REMOVE, ball joint nut. Install suitable tool (J-23742-l on Buick, J8806 on Oldsmobile, and J-8806-1 on Pontiac) between ball stud. On Buick, place jack under lower control arm at spring seat. Raise jack until compression on upper rebound bumper is relieved. Turn threaded end of tool until ball stud is free of steering knuckle. Remove upper control arm shaft to frame nuts. Note number and thickness, as well as location of adjusting shims. Remove control arm and shaft assembly.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.