UMI introduces the 2nd Gen F-body & 78-96 B-Body adjustable upper a-arms, offering a perfect balance of performance and street versatility. These a-arms provide enhanced steering precision with added caster, along with easy adjustments for caster and camber. Crafted from robust tubular construction with a 4140 CrMo cross shaft, they offer unwavering strength on both the track and winding roads. Available in UMI red or gloss black powder coat finishes, these a-arms are made in the USA with unbeatable quality assurance.
UMI’s 2nd Gen F-body & 78–96 B-body adjustable upper A-arms boost steering precision with added caster and easy camber/caster tuning. Built from strong tubular steel with a 4140 CrMo cross shaft, and are made in the USA.
Shorter design reduces need for shims with racing alignment settings; camber range from -0.5° to -2.5°
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
Fitment Note: Not for factory-height applications, lowered vehicles only.
2nd Gen F/78–96 B-body upper A-arms, stronger, adjustable, USA-made.
Pair with UMI lower A-arms for 8 to 10 degrees of positive caster
Includes thick laser-cut ball joint plate and premium ball joint
UMI Performance 70-81 GM F-Body Upper A-arms Front Adjustable
Direct bolt-in for 1970-1981 GM F-body & 1978-1996 GM B-Body
Features 4140 CrMo cross shaft for added strength
100% manufactured in Philipsburg, PA, USA
UMI- Rod End Upper A-Arm
A-Arm Set
