Stage 2 Leveling System GM HD Truck 2500/3500 Silverado/Sierra 11-19 Axiom Supply

The Axiom Supply Stage 2 Leveling System is a complete front suspension upgrade engineered specifically for GM HD trucks seeking increased ride height, corrected suspension geometry, improved wheel travel, and enhanced durability.

Applications include:

• 2011-2019 Chevrolet Silverado 2500HD
• 2011-2019 GMC Sierra 2500HD
• 2011-2019 Chevrolet Silverado 3500HD
• 2011-2019 GMC Sierra 3500HD

Fitment Notes:

• Does not fit the AT4X and ZR2 model trucks with Dssv shocks.
• Provides up to 2 inch of front ride height adjustment.
• 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:

• Complete Stage 2 Suspension Solution – Combines heavy-duty upper control arms, forged torsion leveling keys, and shock spacers into a single system designed to work together for maximum performance and reliability.
• 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. This true double-shear architecture distributes suspension loads evenly 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.
• Forged Torsion Leveling Keys – Designed to provide additional front ride height while maintaining proper torsion bar indexing and adjustment range.
• Shock Spacer and Extension System – Restores available shock travel after leveling to help maintain ride quality, suspension performance, and shock longevity.
• Corrected Suspension Geometry – Restores proper suspension operating angles while improving 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 Stage 2 Leveling System was developed for GM HD truck owners looking for more than a simple leveling kit. By combining ride height adjustment with suspension correction components, this system delivers improved appearance, increased capability, and long-term reliability.

At the foundation of the system are Axiom Supply forged torsion leveling keys, providing up to 2 inch of front ride height adjustment to eliminate factory rake and create clearance for larger tire and wheel combinations. To maintain proper suspension performance after leveling, the system includes Axiom Supply shock spacers and extensions that help restore shock travel and preserve ride quality throughout the suspension’s operating range.

Unlike basic leveling kits that simply increase ride height, the Stage 2 System addresses the geometry changes created by suspension modifications. Included Axiom Supply Heavy-Duty Upper Control Arms feature a true double-shear construction utilizing identical upper and lower 3/16 inch steel plates hand welded into a rigid boxed structure. This design distributes suspension loads evenly through the ball joint mounting area while minimizing flex and maintaining alignment integrity under demanding conditions.

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

Whether your truck is used for towing, work, off-road exploration, or everyday driving, the Axiom Supply Stage 2 Leveling System provides the ride height, suspension correction, and component strength required to confidently handle whatever comes next.

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
• (2) Axiom Supply Forged Torsion Leveling Keys
• (1) Axiom Supply Shock Spacer Kit
• (4) Control Arm Sleeves
• (8) Control Arm Bushings
• (1) 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

• 2011 – 2014 GMC Sierra 3500 HD WT
• 2011 – 2019 GMC Sierra 2500 HD SLE
• 2011 – 2014 GMC Sierra 2500 HD WT
• 2011 – 2019 Chevrolet Silverado 3500 HD WT
• 2011 – 2019 Chevrolet Silverado 2500 HD WT
• 2011 – 2019 GMC Sierra 3500 HD SLT
• 2011 – 2019 GMC Sierra 2500 HD SLT
• 2011 – 2019 GMC Sierra 3500 HD SLE
• 2011 – 2019 Chevrolet Silverado 3500 HD LTZ
• 2011 – 2019 Chevrolet Silverado 2500 HD LTZ
• 2011 – 2019 Chevrolet Silverado 3500 HD LT
• 2011 – 2019 Chevrolet Silverado 2500 HD LT
• 2011 – 2019 GMC Sierra 3500 HD Denali
• 2011 – 2019 GMC Sierra 2500 HD Denali
• 2015 – 2019 GMC Sierra 3500 HD
• 2015 – 2019 Chevrolet Silverado 3500 HD High Country
• 2015 – 2019 Chevrolet Silverado 2500 HD High Country
• 2015 – 2019 GMC Sierra 2500 HD