UMI Performance 2013CM-R Lower Control Arms - On-Car Adjustable Chromoly

The UMI Performance 2013CM-R lower control arms deliver professional-grade adjustability and durability for street performance applications. Constructed from 1.250" x 0.095" 4130 chromoly steel, these control arms provide increased strength while reducing weight compared to standard steel alternatives.

Key Features:

• On-car adjustable design using chromoly heat-treated adjuster for quick length changes
• CNC machined tubing ensures precise fitment and dimensional accuracy
• Fully TIG welded construction for maximum strength and reliability
• 4140 chromoly threaded tube adaptors for superior durability
• Spherical chromoly and Teflon-lined rod ends for smooth articulation
• Hybrid design: polyurethane bushing at chassis side, spherical rod end at axle side
• Durable powder coat finish resists corrosion and wear
• Ships fully assembled and ready to install using OEM hardware

Design Benefits:

The polyurethane bushing at the chassis mount absorbs road noise and vibration before it enters the passenger compartment, making these ideal for street-driven vehicles. The spherical rod end at the rear axle side provides bind-free movement during suspension travel. The on-car adjustability allows you to move the rear axle forward or backward to accommodate larger tires, center aftermarket rear end installations, or correct wheelbase dimensions—all without removing the control arms from the vehicle.

Installation:

Adjustment is simplified with UMI's chromoly on-car adjuster. Simply loosen two jam nuts and turn the adjuster to lengthen or shorten the control arm to your desired specification while the arms remain bolted to the vehicle. This feature is particularly valuable for rear end centering and preventing tire-to-fender interference with oversized wheel and tire combinations.