UMI Performance 3033-1-B Upper A-Arm Control Arm with Upgraded Ball Joints

The UMI Performance 3033-1-B upper A-arm control arm is engineered to transform the handling characteristics of GM trucks, delivering precision Pro-Touring performance for street, drag racing, autocross, and track applications. This premium suspension component combines advanced geometry with race-proven construction to dramatically improve steering response and cornering grip.

Advanced Geometry Benefits:

• Premium ball joints positioned 1/2" taller than stock create up to one additional degree of negative camber at full bump travel for improved tire contact patch during hard cornering
• Relocated ball joint mounting pad delivers up to six degrees of caster without excessive shimming, enhancing steering feel and high-speed stability
• Optimized camber curve throughout suspension travel maximizes lateral grip and tire wear characteristics

Premium Construction Features:

• Robust DOM tubular steel construction with precision CNC machined gussets for maximum strength-to-weight ratio
• TIG welded throughout for superior structural integrity and clean, professional appearance
• Precision bent tubing created on programmable CNC tube bender ensures consistent geometry
• 4140 chromoly cross shafts, CNC machined and zinc plated for exceptional durability and corrosion resistance
• Improved header clearance design accommodates performance exhaust systems

UMI Engineered Bushing System:

• Greaseable, low-deflection Delrin bushings designed and manufactured by UMI for precise suspension response
• Fluted CNC machined design eliminates bushing deflection under load
• Serviceable construction allows for long-term maintenance and performance

Complete Installation Package:

• Polyurethane bump stops included for controlled suspension travel
• Compatible hardware kit available separately (Part # 3012) includes 12mm Grade 10.9 bolts, washers, and nylock nuts
• Recommended alignment specifications and detailed installation instructions included
• Direct bolt-in compatibility with factory or UMI lower A-arms and factory spindles
• May be used in conjunction with other brand lower A-arms and aftermarket spindles

Each A-arm is jig-built for precise repeatability and track-tested to ensure performance under demanding conditions. Available in durable gloss black or red powder coat finish that maintains its appearance through years of use. Designed, engineered, and manufactured with pride in Philipsburg, Pennsylvania, USA.