UMI Performance 3626-B Lower Control Arms with Roto-Joints

The UMI Performance 3626-B lower control arms combine advanced Roto-Joint technology with durable construction to deliver superior handling and comfort for performance street vehicles. These boxed control arms feature a hybrid design with polyurethane bushings on the chassis end and UMI's patented swivel Roto-Joints on the rear axle end, eliminating bind and deflection while maintaining excellent ride quality.

Key Features:

• Constructed from 3" x 1-1/2" x 1/8" rectangular steel tubing with 0.120" wall thickness for maximum strength
• UMI Roto-Joints with delrin-lined spherical bearings provide 28 degrees of unrestricted movement
• Energy Suspension greaseable polyurethane bushings absorb road noise and vibration
• CNC machined drawn-over-mandrel bushing holders ensure precise tolerances and perfect fitment
• MIG and TIG welded construction with welded end caps to prevent debris intrusion
• Reinforced sway bar mounting holes with TIG-welded 0.120" steel sleeves
• Durable powder coat finish for long-lasting corrosion resistance
• Uses factory hardware for straightforward installation
• Shipped fully assembled and ready to install

Performance Benefits:

• Eliminates control arm flex and bushing deflection for improved traction
• Reduces wheel hop during hard acceleration
• Allows suspension to articulate correctly for precision handling
• Low-friction operation ideal for autocross, road racing, and spirited street driving
• Delrin race absorbs shock and road noise for quiet, comfortable daily driving

This hybrid setup positions the softer polyurethane bushings at the chassis mounting points to isolate the passenger compartment from road shock, while the Roto-Joints at the axle end allow free rear suspension movement without binding. The result is a control arm set that delivers race-worthy performance with 100% street comfort and reliability.