UMI Performance 4021-R Rear Lower Control Arms Boxed Design

UMI Performance's 4021-R premium boxed rear lower control arms are engineered to deliver enhanced suspension performance while maintaining a clean, factory appearance. Built in Philipsburg, Pennsylvania, these control arms feature fully boxed construction using large 3" x 1-1/2" x 1/8" wall mild steel rectangular tubing for maximum strength and rigidity.

Key Features:

• Fully boxed design with nicely capped ends prevents debris entry while maintaining factory aesthetics
• CNC machined radius ends and bushing holders ensure precise accuracy and consistency
• MIG welded heavy-duty bushing holders for exceptional durability
• Greaseable polyurethane bushings with zinc-plated sleeves provide quiet, comfortable operation
• TIG welded reinforced sway bar mounting holes accommodate factory-style sway bars, including UMI's popular 1" version
• Durable powder coat finish available in black for corrosion resistance and clean appearance
• Made in the USA with quality materials and craftsmanship

These premium control arms are designed to minimize suspension deflection for crisp handling and reduced wheel hop, making them suitable for street driving, drag racing, or aggressive cornering applications. The larger rectangular tubing and fully boxed construction provide significantly improved rigidity over factory control arms while the greaseable polyurethane bushings maintain ride comfort for daily driving. Installation can be completed in approximately one hour using basic hand tools.