UMI Performance 3056-3-B Upper A-Arm Adjustable Control Arm with Ball Joints

The UMI Performance 3056-3-B is a race-proven adjustable upper A-arm designed for high-performance GM A-Body and G-Body vehicles. Engineered for Pro-Touring, road racing, autocross, and aggressive street driving, this control arm delivers superior geometry and shim-free adjustability for optimal suspension tuning.

Key Features:

• Includes 1" taller low-friction ball joints for improved camber curve and suspension travel
• Relocated ball joint mounting pad increases caster and improves steering feel without excessive shimming
• Race-quality rod ends provide precise, shim-free camber and caster adjustment
• Constructed from 0.120" wall thickness, 1.250" diameter DOM tubing for exceptional strength
• TIG welded construction delivers superior strength and clean appearance
• CNC laser-cut ball joint mounting pad ensures perfect alignment
• 4130 chromoly cross shafts, CNC machined and zinc plated for durability
• Travel-limiting bolt compatible for suspension tuning flexibility
• Polyurethane bump stops included
• Direct bolt-in installation with factory or UMI lower A-arms

The 3056-3-B features a shortened cross shaft to ball joint distance that optimizes suspension geometry for improved handling response. Designed to work with factory spindles, most applications require no additional shims. Each arm is designed, tested, manufactured, and raced in Philipsburg, Pennsylvania, USA, and proven on UMI's legendary '79 Monte Carlo "Green Machine" race car. Package includes recommended alignment specifications and detailed installation instructions.

Note: Designed for factory spindles. May work with other aftermarket lower A-arms and spindles—contact UMI Performance to verify compatibility for your specific application.