UMI Performance 82-02 GM F-Body On-car Adjustable Control Arms- Poly/Roto-Joint

If you're working on a 1982-2002 Chevrolet Camaro and want to improve how the rear suspension handles power, these on-car adjustable lower control arms from UMI Performance are a solid option. They replace your stock arms and use a combination of polyurethane bushings on the chassis side and UMI's unique Roto-Joints on the rear end side. This setup is designed to give you bind-free movement for better traction and a noticeable reduction in wheel hop, especially when you're putting down serious power.

The Roto-Joints are a key feature here. They allow for a generous 28 degrees of rotation, which is more than enough to prevent suspension binding during articulation. Unlike softer bushings that can deflect, the Roto-Joints use a hard chrome-plated 4140 chromoly ball that rotates in a durable Delrin race. This construction is built for wear resistance and maintains its shape under load, contributing to improved grip. The arms themselves are made from strong 1.250” x 0.095” 4130 Chrome Moly steel tubing, which adds strength while keeping weight down. Plus, they're adjustable right on the car, letting you fine-tune your rear end's position to center it or make room for larger tires.

These control arms come fully assembled and ready to install, using your vehicle's original hardware. The polyurethane bushings are designed to absorb road noise and shock, making for a more comfortable ride on the street, while the Roto-Joints are greaseable for low maintenance. If the Delrin race inside the Roto-Joint ever wears, it's designed to be easily rebuilt or adjusted using an optional spanner wrench.