UMI Performance 70-81 GM F-Body Upper A-arms Front Adjustable

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.

Additional Information

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.

• 100% manufactured in Philipsburg, PA, USA
• Constructed with 1.250” USA Made DOM steel and 4140 threaded adapters for durability
• Direct bolt-in for 1970-1981 GM F-body & 1978-1996 GM B-Body
• Enhances steering feel with 5 to 6 degrees of additional caster, reducing wandering
• Features 4140 CrMo cross shaft for added strength
• Includes thick laser-cut ball joint plate and premium ball joint
• Pair with UMI lower A-arms for 8 to 10 degrees of positive caster
• Rod ends minimize stiction for responsive drag race reaction and consistent times
• Shorter design reduces need for shims with racing alignment settings; camber range from -0.5° to -2.5°

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1.	Installation Instructions

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Reference Information