UMI Performance 64-67 GM A-Body Adjustable Upper & Lower Control Arm Kit

If you're looking to get the most out of your classic GM A-Body's rear suspension, especially for spirited driving or track use, upgrading the control arms is a smart move. The stock arms on vehicles like the Chevrolet Chevelle, Pontiac GTO, or Buick Skylark can suffer from worn-out rubber bushings that allow for too much flex, leading to traction loss and unpredictable handling. This kit from UMI Performance replaces those tired arms with well-built tubular units designed to keep your rear end planted.

These aren't just beefier versions of the stock arms; they're built with 1.625-inch diameter DOM mild steel tubing and feature fully welded construction for solid performance. UMI uses CNC machining for precision, ensuring everything fits right. What really sets these apart are the on-car greaseable Energy Suspension polyurethane bushings. These bushings significantly reduce the deflection you get from stock rubber, which helps minimize wheel hop during hard acceleration and improves the consistency of your cornering. Plus, having grease fittings means you can easily maintain them to ensure a long service life.

This kit includes both the upper and lower control arms, and they're designed as a bolt-on replacement using your existing hardware. You'll find the installation straightforward, typically taking around 2 hours, and UMI includes detailed instructions to guide you. The durable powder coat finish not only looks good but also helps protect the steel from the elements, making this a solid upgrade for anyone wanting improved handling and traction from their classic GM A-Body.