UMI Performance 4031-B Front Lower Tubular Control Arms with Ball Joints

UMI Performance 4031-B front lower tubular control arms deliver superior strength and improved handling for your vehicle. Built from precision-bent DOM tubing with CNC-machined tube ends, these modern replacement A-arms eliminate the problems of worn factory arms with cracked ball joint bosses and damaged bushings.

Key Features:

• Premium ball joints pre-installed for immediate installation
• Greaseable fluted polyurethane bushings for long-lasting performance
• Improved ball joint angle optimized for lowered vehicles
• Enhanced design provides additional tire clearance
• Polyurethane bump stops and spring isolators included
• Durable powder coat finish available in red or black
• Jig-built and TIG-welded construction ensures superior strength and precise fitment
• Precision-bent tubing on programmable bender with CNC-machined components

What's Included:

• Fully assembled lower A-arms ready to install
• Hardware kit (Part #4001) with Grade 8 bolts, washers, and nylock nuts
• All mounting hardware needed for installation

These bolt-on control arms work seamlessly with factory spindles and are compatible with factory springs, lowering springs, and coilover kits without modifications. For optimal handling performance, UMI recommends pairing with their upper A-arms (Part #4033-1). Designed, tested, and manufactured with pride in Philipsburg, Pennsylvania, USA. Proven through extensive street, drag strip, and skid pad testing to withstand demanding use.