UMI Performance · New
UMI Performance 65-66 GM B-Body Tubular Upper Control Arm/Trailing Arm
MPN 3656-R · Store SKU umi3656-R
Supplier stock checked 11/7/2026, 9:17:37 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 one of the most important suspension modifications that can be done to your GM vehicle. Stock control arms are on the borderline of "junk", bushing deflection and rusting weak stamped material add for traction loss and poor handling ability. The included high quality polyurethane bushings are an excellent improvement over the OEM rubber bushings, while adding ride improvements they also work excellent to reduce traction loss. These control arms are a direct bolt-on replacement designed to minimize wheel hop, improve cornering and help track consistency. Whether your vehicle is a street car, drag racer or a restoration project these arms are perfect for any set-up. UMI rear control arms upgrade weak GM factory arms with DOM steel, TIG welds, and greaseable poly bushings. Improve traction, reduce wheel hop, and sharpen handling. Fits 3-link or 4-link setups—check if your vehicle needs one or two uppers 3656 - 1965-1966 GM B-Body Tubular Upper Control Arm/Trailing Arm
Manufacturer fitment & guides
Check 3656-R against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
