What is the benefit of the Roto-Joint technology?

UMI's Roto-Joint allows for 28 degrees of unrestricted rotation, which helps prevent suspension bind and reduces wheel hop. It combines the articulation of a rod end with the streetable comfort of a Delrin race, leading to improved traction and handling.

Are these control arms adjustable?

Yes, the Roto-Joints are adjustable and fully rebuildable. An adjustment ring can be tightened with a spanner wrench to maintain tension on the ball as the Delrin race wears, and the race itself can be replaced if necessary.

What is included with these control arms?

These control arms come fully assembled with the Roto-Joints and greaseable polyurethane bushings installed. They are designed to use your vehicle's OEM hardware for installation.

UMI Performance 82-02 F-Body Lower Control Arms- Poly/Roto-Joint Combination

Specifications

Brand: UMI Performance
Part #: 2033-B
UPC: 2033-B

UMI Performance 82-02 F-Body Lower Control Arms- Poly/Roto-Joint Combination

Name: UMI Performance 82-02 F-Body Lower Control Arms- Poly/Roto-Joint Combination
Brand: UMI Performance
Price: 304.63 USD
Availability: InStock

$304.63

On Backorder

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Fits 1982-2002 Chevrolet Camaro and Pontiac Firebird. These lower control arms use Roto-Joints for improved handling and reduced wheel hop.

Key Features

Fits 1982-2002 Chevrolet Camaro and 1982-2002 Pontiac Firebird.
Features UMI's Roto-Joint technology, allowing 28 degrees of unrestricted rotation for bind-free suspension movement.
Constructed from durable 1.500” x 0.120” DOM mild steel tubing.
Combines greaseable polyurethane bushings on one end with the Roto-Joint on the other for a balance of performance and comfort.
The Roto-Joint uses a 4140 chromoly spherical ball with hard chrome plating and a Delrin race for wear resistance and quiet operation.
Adjustable and 100% rebuildable Roto-Joint design for long-term serviceability.

⚠️ 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

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Fits these vehicles

Chevrolet Camaro 1982-2002
Pontiac Firebird 1982-2002

Product Details

The UMI Performance lower control arms for your 1982-2002 F-Body Camaro or Firebird are built with a unique combination of polyurethane bushings on one end and UMI's Roto-Joint technology on the other. This setup is designed to give you improved handling and a more connected feel to the road, while still keeping things comfortable for daily driving. The Roto-Joint itself is a clever piece of engineering, allowing for a full 28 degrees of rotation. It works like a spherical rod end for unrestricted suspension movement, but it uses a Delrin race to keep the ride quiet and smooth, preventing that harshness you might expect from a pure rod end.

These control arms are constructed from strong 1.500” x 0.120” DOM mild steel tubing, fully TIG welded for solid durability. The Roto-Joint features a 4140 chromoly ball with a hard chrome plating that's built to resist wear over many miles. What's really neat is that the Roto-Joint is adjustable and completely rebuildable, meaning you can tighten it up as the Delrin race wears or even replace the race if needed. The polyurethane bushings are bolted to the chassis side, helping to absorb road noise and shock before it gets into the cabin, while the Roto-Joint connects to the rear end, allowing for that crucial free movement that reduces suspension bind and wheel hop, especially during spirited driving.

Everything comes fully assembled and ready to bolt on using your factory hardware, and they're finished with a durable powder coat. This makes for a straightforward installation that significantly improves your car's rear suspension performance and feel.