UMI Performance · New
UMI Performance 70-81 GM F-Body Upper A-arms Front Tall Ball Joints
MPN 2653-1-R · Store SKU umi2653-1-R
Supplier stock checked 11/7/2026, 1:03:18 PM UTC. Adding a part does not reserve it.
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Product details
UMI’s 2nd Gen F-Body upper a-arms are a key component of a great handling muscle car. Our P/N 2653-1 upper a-arms add caster to improve steering feel and reduce wandering while incorporating a ½” taller than stock ball joint to improve camber gain. Strong tubular construction and UMI built Delrin bushings ensure precision performance and enhance steering response. The 4140 CrMo offset cross shaft permits camber adjustment to minimize shims required. Available in UMI red or gloss black powder coat. 100% designed, manufactured and raced with pride in the USA. Optional hardware kit: New hardware kit includes ½” Grade 8 bolts, washers and lock nuts for mounting both upper a-arms. ½” taller than stock upper ball joint improves cornering performance and lateral grip. Add 4 degrees caster to improve steering feel and reduce wandering. 4140 CrMo offset cross shaft for strength and camber adjustability. 2653-1 - 1970-1981 GM F-Body Upper A-arms, Front, Tall Ball Joints Polyurethane pancake style bump stop for smooth rebound control. Greasable UMI built Delrin bushings for smooth motion. 100% manufactured in Philipsburg, PA – USA. 1.250” USA Made DOM steel construction. Direct bolt-in for 1970-1981 GM F-Body. High quality ball joint installed. Great for street and race use. Features:
Manufacturer fitment & guides
Check 2653-1-R against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- California Proposition 65: Y