UMI Performance 3626-R Lower Control Arms with Roto-Joint Technology

UMI Performance 3626-R lower control arms combine innovative Roto-Joint technology with robust boxed construction to deliver superior handling and a comfortable ride. These performance control arms are engineered to eliminate flex and bushing deflection while maintaining excellent street manners.

Advanced Roto-Joint Technology:

Each control arm features UMI's proprietary Roto-Joint at the rear axle end, utilizing a pivot ball lined with a greaseable delrin race. This design provides 28 degrees of unrestricted movement for bind-free, low-friction operation. The delrin race absorbs shock and road noise, delivering quiet performance on the street while offering precision handling for autocross and road racing applications.

Hybrid Bushing Configuration:

This set features Energy Suspension greaseable polyurethane bushings at the chassis mounting end and Roto-Joints at the axle end. The polyurethane bushings absorb road noise and shock before it enters the passenger compartment, while the Roto-Joints allow free rear end movement for improved traction and reduced wheel hop. This combination is ideal for street performance enthusiasts who want responsive handling without sacrificing daily drivability.

Heavy-Duty Construction:

• Fabricated from 3" x 1-1/2" x 1/8" (0.120" wall thickness) rectangular steel tubing
• CNC machined drawn-over-mandrel bushing holders for precise tolerances and perfect fitment
• MIG and TIG welded construction for superior strength and durability
• Reinforced sway bar mounting holes with TIG-welded 0.120" steel sleeves
• MIG welded end caps prevent road debris intrusion

Installation Features:

• Ships fully assembled and ready to install
• Uses OEM hardware for straightforward installation
• Provisions for stock or aftermarket rear sway bars
• 100% streetable setup suitable for daily driving

These boxed lower control arms eliminate the flex and deflection found in factory rubber bushings, allowing the suspension to articulate correctly for precision handling. Whether you're attacking autocross courses or enjoying spirited street driving, the UMI 3626-R control arms deliver the performance and refinement serious enthusiasts demand.