SuperPro Fixed Offset Upper Control Arms with High-Articulation Ball Joints & Polyurethane Bushings – TRC6700 Boost alignment, articulation, and durability on 2–4 inch lifted 4x4s with the SuperPro TRC6700 fixed-offset UCA. Features and Benefits Fixed-offset upper control arms engineered to correct wheel alignment on lifted 4x4 vehicles (2–4 inch lift) — TRC6700. Constructed from high-strength steel forgings and tube steel for heavy-duty durability. Robot-welded components ensure consistent and precise manufacturing quality. Heavy-duty, high-articulation ball joint enables greater suspension travel without binding for improved control over rough terrain. Includes SuperPro polyurethane bushings for superior resilience and durability versus traditional rubber. Polyurethane bushings resist abrasion, wear, and chemicals — ideal for harsh off-road environments. Enhances handling and overall performance while helping reduce tire wear. Designed to solve alignment issues when you lift your 4WD. High-quality welding and assembly; high-grade steel for increased strength. Approved Nationally – VSB 14 Compliant (ADR compliant).