Axiom Supply Stage 1 Leveling Kit | 2020-2026 GM 2500HD/3500HD | Silverado Sierra

Axiom Stage 1 Leveling Kit | 2020–2026 Chevy Silverado / GMC Sierra 2500HD & 3500HD | T1XX Platform

The Axiom Stage 1 Leveling Kit (SKU: AXGM20STAGE1) is a complete front leveling kit engineered for 2020–2026 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD trucks (T1XX coil spring platform). The factory GM HD front end sits lower than the rear by design — this kit raises the front to eliminate factory rake, creating a level stance and improving clearance for larger tires. Engineered specifically for the T1XX coil spring front suspension geometry. Corrosion-resistant components. Sold as a complete Stage 1 front leveling kit. Front-end alignment is required after installation.

Verified Fitment (OFAS Standard)

• Chevy Silverado 2500HD (Front): 2020–2026 (T1XX coil spring)
• Chevy Silverado 3500HD (Front): 2020–2026 (T1XX coil spring)
• GMC Sierra 2500HD (Front): 2020–2026 (T1XX coil spring)
• GMC Sierra 3500HD (Front): 2020–2026 (T1XX coil spring)

Does NOT fit: 2019 or earlier Silverado/Sierra 2500HD/3500HD (K2XX platform — use AXGM10STAGE1 instead). Does not fit Silverado/Sierra 1500 (different front suspension — see AXGM07STAGE1 or AXGM99STAGE1). Confirm model year and platform before ordering.

GM HD Leveling Kit Platform Guide

• 1999–2006 GM 1500 6-Lug (GMT800 torsion bar): Use AXGM99STAGE1
• 2007–2018 GM 1500 (GMT900/K2XX coil spring): Use AXGM07STAGE1
• 2011–2019 GM 2500HD/3500HD (K2XX): Use AXGM10STAGE1
• 2020–2026 GM 2500HD/3500HD (T1XX): Use AXGM20STAGE1 (this listing)

Technical Specifications

• SKU: AXGM20STAGE1
• Type: Stage 1 front leveling kit — complete kit
• Platform: T1XX coil spring front suspension
• Application: 2020–2026 GM 2500HD/3500HD — eliminates factory front-to-rear rake
• Weight: 13 lbs
• Use: Daily driving, towing, hauling, light off-road

What Stage 1 Includes

Complete Stage 1 front leveling kit for the T1XX platform. Shock extensions may be required depending on lift height — confirm shock travel after installation before finalizing your build.

Installation Notes

• Alignment mandatory: A full front-end alignment (caster, camber, toe) is required after installation. Do not drive the vehicle beyond a short test drive until aligned by a qualified alignment technician.
• Platform confirmation required: Confirm your truck is 2020–2026 T1XX before ordering. The 2019 Silverado/Sierra 2500HD/3500HD is K2XX — not T1XX — and requires AXGM10STAGE1.
• Shock travel check: After installation, verify front shock travel at full droop. If shocks are topping out, shock extensions may be required.
• Tire clearance verification: If upsizing tires, verify clearance at full lock and full compression after installation before finalizing wheel and tire selection.
• Torque specs: Torque all hardware to OEM specification for 2020–2026 GM 2500HD/3500HD T1XX (verify in GM service manual or Axiom install sheet).
• Re-torque: Re-torque all hardware after the first 500 miles following installation.

Installation Warning

Do not install on 2019 or earlier GM HD trucks (K2XX) — use AXGM10STAGE1 instead. Do not install on GM 1500. Alignment is mandatory — do not drive without aligning. Verify shock travel after installation. Once installed, the kit is non-returnable.

Engineering Question: Have you confirmed your truck is 2020–2026 T1XX (not 2019 K2XX)? The 2019 model year is K2XX — not T1XX — and requires a different kit. Also confirm whether shock extensions are needed for your specific lift height before ordering to avoid a second front-end disassembly.