Introducing UMI’s 2nd Gen F-body and 78-96 B-Body adjustable upper a-arms – the ultimate combination of race-worthy performance and street-smart versatility. Enjoy improved cornering traction and steering precision with our P/N 2656-1 adjustable upper a-arms. Achieve the perfect balance of caster and camber adjustment without excessive shimming, thanks to UMI’s single adjustable rod end design. Made with robust tubular construction and 4140 CrMo cross shaft for peace of mind on the track or mountain roads. Available in striking UMI red or sleek gloss black powder coat finishes - proudly designed, manufactured, and raced in the USA. Ideal for Pro-Tour style cars requiring stability and cornering performance, suitable for race and street use. 100% manufactured in Philipsburg, PA, USA.
UMI’s adjustable upper A-arms (P/N 2656-1) boost traction, steering, and alignment control with a single adjustable rod end. Built from tubular steel with a 4140 CrMo cross shaft, powder coated in red or black and proudly made in the USA.
Ideal for Pro-Tour style cars requiring stability and cornering performance, suitable for race and street use
Constructed with 1.250” USA Made DOM steel and 4140 threaded adapters for durability
Enhances steering feel with 5 to 6 degrees of additional caster, reducing wandering
Rod ends minimize stiction for responsive drag race reaction and consistent times
UMI Performance 70-81 GM F-Body Upper A-arms Front Adjustable Tall ball joints
Includes thick laser-cut ball joint plate with high-quality tall ball joint
Adjustable F/B-body upper A-arms, better handling, strong build, USA-made.
Fitment Note: Not for factory-height applications, lowered vehicles only.
Combine with UMI lower A-arms for 8 to 10 degrees of positive caster
Shorter design reduces need for shims with racing alignment settings
½” Taller ball joint improves camber gain and cornering traction
Features 4140 CrMo cross shaft for added strength
100% manufactured in Philipsburg, PA, USA
Direct bolt-in for 1970-1981 GM F-body
Camber range from -0.5° to -3°
UMI- Rod End Upper A-Arm
A-Arm Set
