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Supplier details checked 2026-09-23 · Test catalog
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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
Dual-threaded adjuster and jam nut makes caster/pinion angle adjustments quick and easy
Adds strength and articulation flexibility to your stock-height or lifted' Wrangler.
xAxis sealed flex joint for bind free articulation
Product appearance and features may vary in the market as design changes, improvements and modifications are implemented.
SPC Performance 2007+ Jeep Wrangler / 20-23 Gladiator Rear Adjustable Upper Control Arm
SPC 13421 REAR ADJUSTABLE UPPER ARM
ADJ. CONTROL ARM
ADJ ARM EA
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.
Suspension Control Arm
