UMI Performance · New
UMI Performance 64-72 GM A-Body Tubular Lower Control Arms
MPN 4015-B · Store SKU umi4015-B
Supplier stock checked 11/7/2026, 10:56:24 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
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. UMI rear lower control arms for GM A-Body
Manufacturer fitment & guides
Check 4015-B against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
