UMI Performance 2656-1-B Adjustable Upper Control Arm A-Arm Set, 4140 CrMo Cross Shaft

UMI Performance's 2656-1-B adjustable upper A-arms are engineered for serious performance enthusiasts who demand race-worthy components that remain street-friendly. Designed specifically for 1970-1981 GM F-Body vehicles, these control arms deliver improved handling characteristics through enhanced caster and camber adjustability.

Key Performance Features:

• Adds 5 to 6 degrees of positive caster to improve steering feel and reduce wandering
• Camber adjustment range from negative 1/2 degree to negative 3 degrees
• Combine with UMI lower A-arms to achieve 8 to 10 degrees of positive caster
• Single adjustable rod end design allows caster and camber adjustment with zero or minimal shimming
• Taller ball joints (1/2" taller than stock) improve camber gain and enhance cornering traction
• Shorter overall length than stock reduces shimming requirements with racing alignment settings

Construction and Materials:

• 1.250" DOM (Drawn Over Mandrel) steel tubing construction for maximum strength
• 4140 chromoly steel cross shaft for exceptional durability
• 4140 chromoly threaded adapters made in USA
• Thick laser-cut ball joint plates with high-quality tall ball joints installed
• Rod ends reduce friction and binding for consistent drag race reaction times
• Available in UMI red or gloss black powder coat finish

Application and Installation:

• Direct bolt-in fitment for 1970-1981 GM F-Body (Camaro, Firebird, Trans Am)
• Optional hardware kit available with 1/2" Grade 8 bolts, washers, and lock nuts
• Ideal for Pro-Touring builds, road racing, drag racing, and aggressive street driving

100% designed, manufactured, and quality-tested in Philipsburg, Pennsylvania, USA. UMI Performance backs these upper A-arms with American craftsmanship and racing-proven engineering for enthusiasts who refuse to compromise on suspension performance.