Parts & Accessories Spare parts Features: Strong 1-5/8” × 0.157” DOM steel tubing provides maximum durability. Fully adjustable control arms for improved camber, caster, and suspension alignment adjustment. Spring bucket relocation for proper wheel clearance and improved suspension travel. Full range of motion supports superior off-road performance. 6061-T6 aluminum forged tie rods with corrosion-resistant coating. Contents: Front Upper Control Arms (pair). Front Lower Control Arms (pair). Rear Upper Control Arms (pair). Rear Lower Control Arms (pair).