UMI Performance 3042-B Boxed Lower Control Arms with Roto-Joints

The UMI Performance 3042-B boxed lower control arms are engineered to deliver bind-free suspension performance and superior handling for street and track applications. These control arms utilize UMI's innovative Roto-Joint technology, combining the precision of spherical bearings with the comfort of Delrin-lined pivot joints for quiet, smooth operation without sacrificing performance.

Key Features:

• Constructed from heavy-duty 3" x 1-1/2" x 1/8" wall thickness rectangular steel tubing for maximum rigidity
• Spherical Roto-Joints on both ends provide 28 degrees of total unrestricted movement for bind-free operation
• Greaseable Delrin-lined pivot balls absorb shock and road noise while maintaining 100% street compatibility
• CNC-machined drawn-over-mandrel bushing holders ensure precise tolerances and perfect fitment
• MIG and TIG welded construction with welded end caps to prevent road debris intrusion
• Reinforced sway bar mounting holes with TIG-welded 0.120" wall thickness steel sleeves
• Compatible with OEM hardware for straightforward installation
• Durable powder coat finish for long-lasting corrosion protection
• Ships fully assembled and ready to install

These boxed control arms eliminate control arm flex and bushing deflection found in factory rubber and aftermarket polyurethane bushings, resulting in improved traction, reduced wheel hop, and precision handling. The Roto-Joint design allows the suspension to articulate correctly during aggressive driving while maintaining a comfortable ride quality for daily driving. Ideal for high-performance street cars, autocross, road racing, and cruisers demanding both performance and comfort.