UMI Performance 2018-R Lower Trailing Arms Tubular Rear Control Arm Set

The UMI Performance 2018-R tubular lower trailing arm set replaces weak factory stamped rear lower control arms with heavy-duty tubular construction engineered for high-performance applications. These control arms deliver increased strength, reduced weight, and on-car adjustability for GM A-body, G-body, and similar rear suspension platforms.

Construction and Materials:

• 1.250" x 0.120" DOM (Drawn Over Mandrel) mild steel tubing for superior strength
• 4140 chrome moly threaded tube adaptors for durability
• 4140 chrome moly CNC machined double adjuster mechanism
• Complete TIG welded construction throughout
• Brilliant durable powder coat finish for corrosion resistance

Key Features:

• On-car adjustability using right and left hand threads—no removal required
• Greaseable Energy Suspension polyurethane bushings for ride comfort and longevity
• Quick wrench adjustments to gain clearance for large tires
• Allows centering of aftermarket rear ends in the wheel well
• Sold as a complete control arm set

Chrome Moly Upgrade Available: UMI also offers a chrome moly version using 1.250" x 0.095" 4130 chrome moly steel tubing. This upgrade provides higher tensile and yield strength than mild steel while reducing weight through thinner wall construction.

These trailing arms are ideal for street performance, autocross, drag racing, and pro-touring builds where precise rear suspension geometry and adjustability are critical.