UMI Performance 4031-R Tubular Front Lower A-Arms Red Powder Coat with Polyurethane Bushings

The UMI Performance 4031-R tubular front lower A-arms are a direct bolt-on replacement designed to eliminate the worn-out, cracked, and deteriorated stock lower control arms found on GM A-Body vehicles. Fabricated from DOM (drawn-over-mandrel) tubing with CNC-machined tube ends, these arms deliver a precision fit and consistent geometry every time they are installed.

Key Features:

• Fabricated from high-quality DOM tubing, precision bent on a programmable tube bender and CNC machined for accuracy
• Jig built and TIG welded for superior strength and a clean finished look
• New premium greaseable ball joints installed at the factory
• Greaseable fluted polyurethane bushings for reduced deflection and improved ride quality
• Polyurethane bump stops and spring isolators included
• Improved ball joint angle engineered specifically for lowered vehicles
• Design provides additional tire clearance over stock arms
• Durable red powder coat finish (also available in black as P/N 4031-B)
• Compatible with factory spindles, factory springs, lowering springs, and coil-over kits — no modifications required
• Shipped fully assembled and ready to install
• Designed and manufactured in Philipsburg, PA — USA

Hardware: Mounting hardware is sold separately. UMI Part #4001 Lower A-Arm Hardware Kit includes ½-13 Grade 8 bolts, washers, and nylock nuts — everything needed to mount these arms to your vehicle.

Recommended Pairing: For optimal handling and performance across the street, drag strip, and skid pad, UMI recommends combining these lower A-arms with UMI upper A-arms, P/N 4033-1.

These arms arrive fully assembled, making installation straightforward. UMI's extensive real-world testing across multiple driving disciplines ensures this is a product built to withstand all types of use.