UMI Performance 64-72 GM A-Body Tubular Upper & Lower Front A-Arm Kit- Delrin Bushings

If you're looking to give your classic GM A-Body a serious handling upgrade, this tubular upper and lower A-arm kit from UMI Performance is a solid choice. It replaces the original stamped steel arms with strong, fabricated tubular steel, bringing a modern feel to vehicles like the Chevrolet Chevelle, Buick Skylark, and Oldsmobile Cutlass. This kit is designed to improve steering response and suspension action, making your classic muscle car feel more precise and controlled on the street or at the track.

UMI builds these A-arms with a focus on performance and durability. The lower arms use greaseable Delrin bushings for smooth suspension movement and precise handling, along with polyurethane spring isolators for a bit of comfort. The ball joint mount is angled slightly to help with clearance on lowered vehicles. The upper arms also feature UMI-manufactured Delrin bushings and billet CrMo cross shafts, with a relocated mounting pad that increases caster for better steering feel without needing excessive shims. Both arms are built using jig-welded DOM tubing for accuracy and strength, and they come pre-assembled with new premium ball joints and polyurethane bump stops. This kit is designed to work with factory springs, lowering springs, or popular coil-over setups.

This kit comes fully assembled and ready for installation, and UMI includes recommended alignment specifications and detailed instructions to help you get the most out of the upgrade. It's manufactured in the USA with TIG welding in critical areas for superior strength and a clean look, finished in a durable glossy red or black powder coat. A separate hardware kit (Part # 4004) is available to replace your old fasteners with new Grade 8 hardware.