SPC Performance · New
SPC Performance 2007+ Jeep Wrangler / 20-23 Gladiator Rear Adjustable Upper Control Arm
MPN 13421 · Store SKU spc13421
Supplier stock checked 11/7/2026, 7:38:37 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
The direct-fit rear upper control arm adds strength, on-car adjustability and articulation flexibility to your stock-height or 'lifted' Wrangler. It features SPC's xAxis sealed flex joint receiver at the frame end to provide bind-free 'twist' during off-road articulation and an OE style rubber bushing on the axle end to reduce NVH (Noise Vibration Harshness). D.O.M. steel contruction and a forged link provide the strength required for large tires and aggressive gearing. The dual-threaded adjuster and jam nuts make rear pinion angle adjustments quick and easy without the need to disconnect the arm. California Residents WARNING The direct-fit rear upper control arm adds strength, on-car adjustability and articulation flexibility to your stock-height or 'lifted' Wrangler. It features SPC's xAxis sealed flex joint receiver at the frame end to provide bind-free 'twist' during off-road articulation and an OE style rubber bushing on the axle end to reduce NVH (Noise Vibration Harshness). D.O.M. steel contruction and a forged link provide the strength required for large tires and aggressive gearing. The dual-threaded adjuster and jam nuts make rear pinion angle adjustments quick and easy without the need to disconnect the arm. Self-lubricated and sealed xAxis joints are maintenance and hassle free. Easily adjust rear pinion angle 3 with Dual-threaded adjuster and jam nuts. Corrosion resistant coating provides superior protection from the elements. Increased Strength, Adjusts rear pinion angle 3, Extended articulation. JEEP REAR ADJ. UPPER ARM
Manufacturer fitment & guides
Check 13421 against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- California Proposition 65: Y