Axiom Supply Upper Control Arm System GM HD Truck 2500 / 3500 Silverado / Sierra 2001-2010

Fitment

The Axiom Supply Heavy-Duty Upper Control Arm System is designed for GM 8-lug HD trucks and SUVs utilizing the factory-style upper control arm mounting locations.

Chevrolet / GMC HD Trucks

Silverado 2500HD – 2001-2010

Sierra 2500HD – 2001-2010

Silverado 3500 / 3500HD – 2001-2010

Sierra 3500 / 3500HD – 2001-2010

Silverado 1500HD – 2001-2003, 2005-2007 Classic

Sierra 1500HD – 2001-2003, 2005-2007 Classic

Silverado 2500 – 2001-2004

Sierra 2500 – 2001-2004

GM 2500-Series SUV / Hummer Applications

Chevrolet Suburban 2500 – 2001-2013

GMC Yukon XL 2500 – 2001-2013

Chevrolet Avalanche 2500 – 2002-2006

Hummer H2 – 2003-2009

Hummer H2 SUT – 2005-2009

Fitment Notes

Fits applicable 2WD and 4WD models.

Compatible with gas and Duramax diesel applications.

Fits both 2001-2007 Classic and 2007.5-2010 New Body Style GM HD trucks.

Designed for stock, leveled, and lifted applications utilizing the factory upper control arm mounting locations.

Oversized tires may require additional wheel offset or spacers for adequate control arm clearance.

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Features

Ride-Height Corrected Caster Geometry – Unlike many aftermarket upper control arms built around a fixed geometry intended for one specific lift or leveling range, the Axiom control arm has been engineered with caster correction built directly into the arm geometry. This provides improved alignment capability across a wide range of ride heights from stock-height trucks to leveled and lifted applications while helping maintain proper steering feel, stability, and suspension operation.

True Double-Shear Construction – Built from identical upper and lower 3/16" 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 – Engineered to improve upper ball joint operating angles on stock, leveled, and lifted GM HD trucks while restoring usable suspension travel and maintaining proper alignment characteristics.

Increased Droop Travel – Improved control arm and ball joint geometry allows additional downward suspension movement compared with the limitations commonly encountered with the factory upper control arm at increased ride heights.

Improved Alignment Capability – Increased usable caster and camber adjustment helps alignment technicians properly set up trucks across a broader range of suspension heights and configurations.

Dual-Position Ball Joint Mounting – Allows the ball joint to be mounted above or below the control arm mounting plate, providing additional flexibility when optimizing ball joint angle, suspension geometry, and alignment.

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.

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Description

The Axiom Supply Heavy-Duty Upper Control Arm System for GM HD Trucks was developed to solve one of the biggest compromises found in both factory and many aftermarket upper control arm designs: suspension geometry that becomes increasingly unfavorable as ride height changes.

The factory torsion-bar suspension used on the 2001-2010 Silverado and Sierra HD platform is extremely capable, but increasing front ride height through torsion keys, leveling kits, or suspension modifications changes upper ball joint angles, reduces available droop travel, and can make proper alignment increasingly difficult.

Many aftermarket upper control arms address this by building a predetermined amount of correction into the arm based around a specific leveling or lift range. While this can work well at the intended height, that same geometry may not be ideal when the truck is configured differently.

Axiom approached the design differently.

The caster geometry of the Axiom Upper Control Arm System has been specifically engineered to provide usable alignment correction across a broad range of ride heights, making the arm equally suited for stock-height, leveled, and lifted GM HD applications.

Rather than forcing the suspension into a geometry optimized around only one specific ride height, the Axiom design provides the alignment technician with the usable caster range needed to properly set up the truck based on its actual suspension configuration.

The result is improved straight-line stability, steering return-to-center, suspension articulation, tire contact, and overall driving characteristics while preserving the flexibility required for trucks that may change suspension height or wheel and tire configurations over time.

At the core of the design is Axiom's true double-shear construction, utilizing matching upper and lower 3/16" steel plates. Once precision laser cut and hand welded into a single structural assembly, these matching plates support the ball joint mounting area from both sides rather than relying on a single mounting surface.

This creates an exceptionally rigid control arm capable of distributing suspension loads more evenly through the ball joint area while reducing flex under heavy steering and suspension loads.

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.

The AX6292 provides exceptional stud strength while maintaining a fully serviceable bolt-in design, allowing the ball joint to be replaced independently without replacing the entire control arm.

Axiom's dual-position ball joint mounting design provides another level of suspension setup flexibility. Depending on ride height and suspension configuration, the ball joint can be installed above or below the mounting plate to help optimize operating angle, articulation, and suspension travel.

Premium bushings, precision sleeves, improved grease-fitting access, corrosion-resistant construction, and fully serviceable components complete a control arm system designed for long-term heavy-duty use.

Whether your GM HD is stock height, torsion-key leveled, running a larger suspension system, towing every day, or built around oversized tires and aggressive off-road use, the Axiom Supply Heavy-Duty Upper Control Arm System delivers the caster correction, suspension geometry, strength, travel, alignment capability, and serviceability required to properly build the front suspension around the truck—not around a predetermined lift height.

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Ball Joint Interchange

The included Axiom Supply AX6292 utilizes the common aftermarket bolt-in upper ball joint pattern associated with:

K6292

MOOG K6292

The AX6292 is a serviceable bolt-in ball joint designed specifically for compatible aftermarket GM HD upper control arms.

Note: K6292 interchange applies to the bolt-in ball joint used with compatible aftermarket upper control arms. It is not the same design as the factory press-in upper ball joint used in the original stamped GM control arm.

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Maintenance

Apply approximately 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 properly lubricate the joint and avoid over-greasing.

Periodically inspect control arm bushings, ball joints, mounting hardware, and suspension components, particularly on vehicles used off-road or equipped with oversized tires.

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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

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Interchange

2001-2010 Chevy Silverado 2500HD Upper Control Arms, 2001-2010 GMC Sierra 2500HD Upper Control Arms, Silverado 3500 Upper Control Arms, Silverado 3500HD Upper Control Arms, Sierra 3500 Upper Control Arms, Sierra 3500HD Upper Control Arms, Silverado 1500HD Upper Control Arms, Sierra 1500HD Upper Control Arms, Silverado 2500 Upper Control Arms, Sierra 2500 Upper Control Arms, Suburban 2500 Upper Control Arms, Yukon XL 2500 Upper Control Arms, Avalanche 2500 Upper Control Arms, Hummer H2 Upper Control Arms, Hummer H2 SUT Upper Control Arms, Duramax Upper Control Arms, LB7 Upper Control Arms, LLY Upper Control Arms, LBZ Upper Control Arms, LMM Upper Control Arms, GM HD Leveling Upper Control Arms, GM HD Caster Corrected Upper Control Arms, K6292 Upper Ball Joint, AX6292 Upper Ball Joint

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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.