UMI Performance 421516-R Rear Upper & Lower Control Arm Kit Red

The UMI Performance 421516-R is a complete rear upper and lower control arm kit engineered for GM A-Body vehicles. Designed for street, strip, and road course use alike, this kit dramatically reduces suspension deflection for sharper, more predictable handling and significantly less wheel hop. The kit is proudly manufactured in Philipsburg, PA, USA.

The boxed lower control arms feature reinforced sway bar mounting holes for factory-style sway bar installation, and the included shim positions the sway bar at factory ride height. The fixed-length upper control arms are built with heavy-duty CNC laser-cut ¼" thick mounting pads designed to work with all rear end housings. All arms are CNC machined for dimensional accuracy and assembled with greaseable polyurethane bushings equipped with zinc-plated steel sleeves for long service life.

Key Features:

• Made in Philipsburg, PA – USA
• 1/8" wall thickness USA mild steel tubing construction
• CNC laser-cut ¼" upper mounting pads – compatible with all rear end housings
• MIG welded heavy-duty bushing holders
• TIG welded sleeves reinforce sway bar mounting holes
• Greaseable polyurethane bushings with zinc-plated steel sleeves
• CNC machined for precision accuracy and consistency
• Durable, long-lasting powder coat finish in Red
• Includes shim to maintain factory sway bar height
• Installs in approximately two hours with basic hand tools

Whether you're building a dedicated track car or a spirited street machine, the UMI Performance 421516-R control arm kit delivers the structural integrity and bushing quality needed to keep your suspension performing lap after lap.