UMI Performance 64-72 GM A-Body Tubular Lower Control Arms - 4015-B
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Hosted by UMI Performance. Follow the maker's instructions and torque specs.
Rear lower control arms are a necessary upgrade for any General Motors A-Body vehicle. Our control arms are designed to replace the weak and rusted factory arms, providing increased strength and rigidity. Made from strong DOM steel tubing, these direct bolt-on replacements help reduce wheel hop and improve cornering, leading to better track consistency. They feature CNC machined mild steel tubing, fully TIG welded construction, greaseable polyurethane bushings, and zerk grease fittings for optimal performance.
Upgrade your GM A-Body with UMI rear lower control arms. Built from strong DOM steel with TIG welded construction, they reduce wheel hop, improve cornering, and install easily in about an hour using OEM hardware.
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It is listed for: 1964-1972 GM A-Body. Pick your vehicle on this page to check your exact year and trim.
The maker's installation guide is on this page — see Installation guide under the part details for the step-by-step and the torque figures. Work on level ground with the car properly supported, and torque every fastener to the maker's figure. If the job is beyond your tools, any shop that does this kind of work can fit it.
Yes, every time a control arm is replaced: its ball joint and bushings set camber and toe.
Usually, when the arm is a complete assembly; the Part details and the maker's guide say what is included.
A lowered or lifted car pushes camber outside the stock range; adjustable arms bring it back so the tires wear evenly.
Replace both sides when the car is lowered or lifted so both corners adjust the same way. A single worn arm can be replaced on its own.
Torque the bushing bolts with the car at ride height, not hanging on a lift, or the bushings bind and wear early.
Yes — monthly options show right under the Add to Cart button. Affirm, Klarna, PayPal Pay Later and Snap Finance are offered at checkout, and checking what you qualify for does not affect your credit score.