What is the benefit of UMI's Roto-Joint technology compared to standard bushings?

UMI's Roto-Joints offer significantly more articulation, up to 28 degrees, allowing the suspension to move freely without binding. This leads to improved handling, better traction, and a smoother ride by absorbing shocks and road noise more effectively than traditional rubber or polyurethane bushings.

Do these control arms come with all the necessary hardware for installation?

These control arms are designed to use your vehicle's original hardware for installation. They ship fully assembled with the Roto-Joints installed, ready to bolt on.

Are these control arms suitable for both street driving and track use?

Yes, the Roto-Joint design is engineered for both streetability and performance. The Delrin race provides a quiet and comfortable ride on the street, while the bind-free movement and low friction operation are beneficial for high-handling situations like autocross or road racing.

UMI Performance 64-72 A-Body Rear Lower Control Arms- Roto-Joint/Roto-Joint

Specifications

Brand: UMI Performance
Part #: 4040-B
UPC: 4040-B

UMI Performance 64-72 A-Body Rear Lower Control Arms- Roto-Joint/Roto-Joint

Name: UMI Performance 64-72 A-Body Rear Lower Control Arms- Roto-Joint/Roto-Joint
Brand: UMI Performance
Price: 402.55 USD
Availability: InStock

$402.55

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

UMI Performance rear lower control arms with Roto-Joints for 1964-1972 A-Body vehicles. Improves handling and ride quality.

Key Features

Fits 1964-1972 A-Body vehicles including Chevrolet Chevelle, Pontiac GTO, Buick Skylark, and Oldsmobile Cutlass.
Features UMI's Roto-Joint technology with a greaseable Delrin race for 28 degrees of bind-free movement.
Constructed from 1.500" x 0.120" DOM mild steel tubing.
Fully TIG welded for solid construction.
Delrin race absorbs shock and road noise for a comfortable ride.
Includes reinforced sway bar mounting holes for stock or aftermarket sway bars.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

What you get in this kit are a pair of UMI Performance rear lower control arms, fully assembled and ready to install. These aren't your typical control arms; they feature UMI's Roto-Joint technology on both ends. This design uses a greaseable Delrin race around a pivot ball, allowing for a full 28 degrees of movement. This bind-free articulation is a big step up from the factory rubber or aftermarket polyurethane bushings, letting your suspension move more freely for better handling and a smoother ride.

Constructed from strong 1.500" x 0.120" DOM mild steel tubing and fully TIG welded, these control arms are built to last. The Roto-Joints absorb shocks and road noise, making them suitable for both daily driving and more spirited use like autocross or road racing. They also include reinforced sway bar mounting holes, ready for stock or aftermarket sway bars. The durable powder coat finish not only looks good but adds protection.

These control arms are designed to fit a wide range of 1964-1972 A-Body vehicles, including popular models like the Chevrolet Chevelle, Pontiac GTO, and Buick Skylark. They use your vehicle's original hardware for installation, making the process straightforward.