UMI Performance · New
UMI Performance 64-67 GM A-Body Tubular Non-Adjustable Upper Control Arms
MPN 4018-B · Store SKU umi4018-B
Supplier stock checked 11/8/2026, 3:55:06 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 control arms are essential suspension upgrades for GM vehicles. Stock control arms are often subpar, leading to traction loss and poor handling due to bushing deflection and weak material. Our tubular control arms offer the best of both worlds, whether you're a weekend cruiser or a track enthusiast. The polyurethane bushings included provide better performance than OEM rubber bushings, reducing traction loss and improving ride quality. These control arms are a direct bolt-on replacement that minimizes wheel hop, enhances cornering, and improves track consistency. Installation is simple - a 1-hour bolt-on process that requires no drilling and uses OEM hardware. UMI rear tubular control arms for GM vehicles improve handling and reduce wheel hop. Polyurethane bushings outperform OEM rubber, enhancing traction and ride quality. Direct bolt-on installation takes ~1 hour. UMI tubular rear control arms with poly bushings, bolt-on, 1-hour install.
Manufacturer fitment & guides
Check 4018-B against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
