Upper Control Arm System GM HD Truck 2500/3500 Silverado/Sierra 20-26 Axiom Supply

The Axiom Supply Heavy-Duty Upper Control Arm System is engineered specifically for GM HD trucks requiring improved suspension geometry, increased wheel travel, and enhanced alignment capability.

Applications include:

• 2020-2026 Chevrolet Silverado 2500HD
• 2020-2026 GMC Sierra 2500HD
• 2020-2026 Chevrolet Silverado 3500HD
• 2020-2026 GMC Sierra 3500HD

Fitment Notes:

• Designed for stock, leveled, and lifted applications.
• Compatible with most aftermarket suspension systems utilizing factory-style upper control arm mounting locations.
• Oversized tires exceeding 11.50 inch in width may contact the control arm when used with certain factory wheel configurations.
• Additional wheel offset or wheel spacers may be required depending on tire size and wheel combination.

Features:

• True Double-Shear Construction – Built from identical upper and lower 3/16 inch steel plates that are precision laser cut and hand welded into a single rigid structure. By supporting the ball joint mounting area from both sides, this true double-shear design distributes suspension loads more effectively while maximizing strength, rigidity, and long-term durability.
• Equipped with AX6292 Grade 12.9 Ball Joints – Every kit includes a pair of Axiom Supply AX6292 bolt-on upper ball joints featuring our Grade 12.9 Extreme-Duty Ball Stud technology for exceptional strength, steering precision, and resistance to deformation under heavy loads.
• Corrected Suspension Geometry – Restores proper suspension operating angles on leveled and lifted trucks while improving available droop travel and overall suspension performance.
• Dual-Position Ball Joint Mounting – Allows the ball joint to be mounted above or below the control arm mounting plate, providing additional flexibility when dialing in alignment settings and suspension geometry.
• Precision Laser-Cut Components – Manufactured using computer-designed, laser-cut steel components for exceptional fitment consistency and manufacturing accuracy.
• Service-Friendly Design – Improved grease fitting access simplifies routine maintenance and lubrication regardless of control arm orientation.
• Premium Bushing System – High-quality bushings and sleeves provide smooth articulation while minimizing unwanted suspension deflection.
• Built for Heavy-Duty Use – Engineered to withstand the demands of towing, oversized tires, lifted suspension systems, off-road use, and daily driving.
• Lifetime Warranty Protection – Backed by the Axiom No-Nonsense Lifetime Warranty for the original purchaser.

The Axiom Supply Heavy-Duty Upper Control Arm System was developed to provide a stronger, more capable solution for GM HD truck owners who demand more from their suspension.

As ride height increases through leveling kits or suspension modifications, factory upper control arms can limit suspension travel and create unfavorable operating angles. The Axiom system addresses these issues through corrected geometry that restores suspension performance while maintaining proper alignment characteristics throughout the suspension cycle.

At the core of the design is a true double-shear construction utilizing identical upper and lower 3/16 inch steel plates. Once hand welded into a single assembly, these matching structural components create an exceptionally rigid control arm capable of distributing suspension loads evenly through the ball joint mounting area. The result is improved structural integrity, reduced flex, and long-term durability in demanding operating conditions.

Each control arm system comes equipped with Axiom Supply AX6292 Bolt-On Upper Ball Joints featuring our Grade 12.9 Extreme-Duty Ball Stud technology. Combined with the arm’s dual-position ball joint mounting system, installers gain the flexibility to optimize alignment settings while benefiting from one of the strongest bolt-on upper ball joints available for the GM HD platform.

Additional attention has been given to long-term serviceability through improved grease fitting access and premium serviceable components designed to keep maintenance simple throughout the life of the vehicle.

Whether your truck is stock height, leveled, or fully lifted, the Axiom Supply Upper Control Arm System delivers the geometry correction, structural integrity, serviceability, and component strength required for serious heavy-duty truck use.

Maintenance

Apply 3 pumps of grease to each ball joint during installation.

For continued performance, service each ball joint every 5,000-7,000 miles. Use only the amount of grease necessary to lubricate the joint and avoid over-greasing.

Includes:

• (2) Axiom Supply Heavy-Duty Upper Control Arms
• (2) Axiom Supply AX6292 Grade 12.9 Bolt-On Upper Ball Joints
• (4) Control Arm Sleeves
• (8) Control Arm Bushings
• Complete Installation Hardware Kit

The Axiom No-Nonsense Lifetime Warranty

Our suspension and steering components are warrantied for life to the original purchaser against manufacturer defects, premature wear, or breakage. Push it to the limit-we don’t care. If the part lets you down, we’ll make it right.

Details:

• Warranty: Limited Lifetime Warranty

✅ Vehicle Compatibility

• 2020 – 2026 GMC Sierra 2500 HD AT4
• 2020 – 2026 GMC Sierra 3500 HD AT4
• 2020 – 2026 Chevrolet Silverado 3500 HD WT
• 2020 – 2026 Chevrolet Silverado 2500 HD WT
• 2020 – 2026 GMC Sierra 3500 HD SLT
• 2020 – 2026 GMC Sierra 2500 HD SLT
• 2020 – 2026 GMC Sierra 3500 HD SLE
• 2020 – 2026 GMC Sierra 2500 HD SLE
• 2020 – 2026 Chevrolet Silverado 3500 HD LTZ
• 2020 – 2026 Chevrolet Silverado 2500 HD LTZ
• 2020 – 2026 Chevrolet Silverado 3500 HD LT
• 2020 – 2026 Chevrolet Silverado 2500 HD LT
• 2020 – 2026 Chevrolet Silverado 3500 HD High Country
• 2020 – 2026 Chevrolet Silverado 2500 HD High Country
• 2020 – 2026 GMC Sierra 3500 HD Denali
• 2020 – 2026 GMC Sierra 2500 HD Denali
• 2020 – 2026 Chevrolet Silverado 2500 HD Custom
• 2020 – 2021 GMC Sierra 3500 HD
• 2020 – 2021 GMC Sierra 2500 HD
• 2022 – 2026 GMC Sierra 2500 HD Pro
• 2022 – 2026 GMC Sierra 3500 HD Pro
• 2024 – 2026 GMC Sierra 3500 HD Denali Ultimate
• 2024 – 2026 GMC Sierra 2500 HD Denali Ultimate
• 2024 – 2026 GMC Sierra 2500 HD AT4X
• 2024 – 2026 Chevrolet Silverado 2500 HD ZR2