UMI Performance 4216-B Rear Upper Control Arms Heavy-Duty Polyurethane Bushing Set

The UMI Performance 4216-B rear upper control arms are a bolt-in suspension upgrade engineered for street, strip, and performance driving. Designed to minimize suspension deflection, these arms deliver crisp, responsive handling and significantly reduce wheel hop for a more controlled ride under all conditions.

Manufactured in Philipsburg, PA, USA, every component is built to exacting tolerances using CNC machined processes to ensure accuracy and consistency across every unit. The arms feature 1/8" wall thickness USA mild steel tubing for a strong yet lightweight structure, complemented by CNC laser cut 1/4" upper mounting pads and MIG welded heavy-duty bushing holders for a robust, rattle-free assembly.

Key Features:

• Made in Philipsburg, PA – USA
• CNC laser cut 1/4" upper mounting pads for precision fitment
• MIG welded heavy-duty bushing holders for maximum strength
• 1/8" wall thickness USA mild steel tubing construction
• CNC machined for accuracy and consistency
• Greaseable polyurethane bushings with zinc-plated steel sleeves for long-lasting performance
• Durable glossy powder coat finish resists corrosion and wear
• Designed to work on all rear end housings
• Bolt-in installation — approximately 1–2 hours with basic hand tools

UMI Performance's rear upper control arms are finished in a durable glossy powder coat and assembled with greaseable polyurethane bushings paired with zinc-plated steel sleeves, providing a maintenance-friendly design built to last. Whether you're building a dedicated track car or a high-performance street machine, these arms are a proven, bulletproof upgrade to your rear suspension.