SuperPro Fixed Offset Upper Control Arms - TRC6610 The SuperPro TRC6610 fixed offset upper control arms enhance wheel alignment on lifted 4x4s to reduce tire wear and boost performance. Designed for 1–3 inch lifts, they feature a heavy-duty, high-articulation ball joint and durable polyurethane bushings. Features and Benefits SKU TRC6610: fixed offset UCA engineered to enhance wheel alignment on lifted 4x4 vehicles, helping reduce tire wear and improve overall performance. Compatible with 1 to 3 inch lifted vehicles. Constructed from high-strength steel forgings and tube steel for heavy-duty durability. Robot-welded components ensure consistent, precise manufacturing standards. Heavy-duty, high-articulation ball joint enables greater suspension articulation without binding for improved control over rough terrain. Includes SuperPro polyurethane bushings with superior resilience and durability versus traditional rubber. Polyurethane is resistant to abrasion, wear, and chemicals—ideal for harsh off-road environments. 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). Manufactured, tested and designed in Australia; engineered to outperform.