UMI Performance Lower Control Arms with Roto-Joints

UMI Performance Lower Control Arms with Roto-Joints are tubular and boxed rear suspension control arms. They are built to give bind-free articulation, better traction and precise handling. They suit street, strip and road course use. Roto-Joint technology replaces the factory rubber or aftermarket polyurethane bushing at the pivot. This reduces wheel hop and arm flex while keeping the ride comfortable and quiet.

Key Features:

• Roto-Joint technology: a spherical pivot ball rotating in a greaseable Delrin race allows about 28 degrees of unrestricted movement, which helps prevent suspension bind.
• Durable joint construction: a hard chrome plated 4140 chrome moly spherical ball runs in a wear-resistant Delrin race that absorbs shock and road noise.
• Adjustable and rebuildable: the Roto-Joints can be adjusted and rebuilt for long service life and low maintenance.
• Strong fabricated construction: the arms are built from DOM steel tubing or rectangular boxed tubing, depending on the design, with TIG and/or MIG welded construction.
• Sway bar compatible: the sway bar mounting provisions are reinforced for added strength.
• Easy installation: the arms ship fully assembled, use OEM-style mounting hardware and have a durable powder coat finish.

Available in a range of configurations, including Roto-Joint on both ends or a Roto-Joint paired with a polyurethane bushing. UMI Performance lower control arms are designed to improve rear suspension geometry and handling over stock components. Select the configuration that matches your application and performance goals.