Axiom Supply Leveling Key Set | 0-2 in Front Lift | 2011-2019 GM 2500HD/3500HD

Axiom Leveling Key Set | 0–2" Front Lift | 2011–2019 Chevy Silverado / GMC Sierra 2500HD & 3500HD

The Axiom Leveling Key Set (SKU: AXGMKEY11) provides up to 2" of front lift for 2011–2019 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD trucks. Forged steel keys replace the factory front suspension keys and index the front suspension at a higher position, raising the front of the truck to correct factory rake and level the stance. Actual lift achieved varies based on factory key position and suspension condition — up to 2" is typical. Corrosion-resistant finish. Direct bolt-on installation. Front-end alignment is mandatory after installation.

Verified Fitment (OFAS Standard)

• Chevy Silverado 2500HD (Front): 2011–2019 (K2XX platform)
• Chevy Silverado 3500HD (Front): 2011–2019 (K2XX platform)
• GMC Sierra 2500HD (Front): 2011–2019 (K2XX platform)
• GMC Sierra 3500HD (Front): 2011–2019 (K2XX platform)

Does NOT fit: 2010 or earlier Silverado/Sierra HD (GMT800/GMT900 platform — use AXGMKEY10 instead). Does not fit 2020–2026 Silverado/Sierra HD (T1XX platform — different front suspension geometry). Does not fit Silverado/Sierra 1500. Confirm model year and platform before ordering.

GM HD Leveling Key Platform Guide

• 2001–2010 GMT800/GMT900: Use AXGMKEY10
• 2011–2019 K2XX: Use AXGMKEY11 (this listing)
• 2020–2026 T1XX: Verify separately — different front suspension geometry

Technical Specifications

• SKU: AXGMKEY11
• Type: Front suspension leveling key set
• Front Lift: 0–2" (varies by factory key position and suspension condition)
• Rear Lift: None — front leveling only
• Construction: Forged steel — corrosion-resistant finish
• Installation: Direct bolt-on replacement for factory front suspension keys
• Weight: 11 lbs
• Application: Daily driving, towing, hauling — corrects factory front-to-rear rake

Installation Notes

• Alignment mandatory: Full front-end alignment (caster, camber, toe) is required after installation. Leveling key installation changes front suspension geometry — do not drive the vehicle until aligned by a qualified alignment technician.
• Actual lift varies: Lift achieved depends on factory key position and suspension condition. Measure actual lift after installation before ordering tires or other components sized for a specific lift height.
• Caster correction: A 2" front lift on the K2XX platform will reduce positive caster. On trucks used for towing or highway driving, adjustable upper control arms or a caster correction kit is recommended to restore factory caster angle and maintain steering stability.
• Shock compatibility: Leveling keys extend front shock travel. Verify front shock travel is compatible with your achieved lift height. Fox 2.0 AX189 (0–3" front lift, 2011–2026 GM HD) and Fox 2.5 HTO AX4010 (0–2.5" front lift, 2011–2026 GM HD) are confirmed compatible shock upgrades for this application.
• Suspension inspection: Inspect front suspension components for wear before installation. Worn ball joints, tie rod ends, or control arm bushings should be replaced before leveling to avoid accelerated wear at the new geometry.
• Torque specs: Torque all suspension hardware to OEM specification for 2011–2019 GM 2500HD/3500HD K2XX (verify in GM service manual or Axiom install sheet).
• Re-torque: Re-torque all hardware after the first 500 miles of driving following installation.

Installation Warning

Do not install on 2010 or earlier (GMT800/GMT900) or 2020 or newer (T1XX) GM HD trucks — front suspension geometry is incompatible. Do not drive the vehicle until a full front-end alignment has been completed. Failure to re-torque hardware after break-in can result in loose suspension components and unsafe handling. Once installed, the kit is non-returnable.

What is your current tire size, intended use (daily/tow/off-road), and do you need a compatible front shock upgrade (AX189 or AX4010) to match your achieved lift height?