Axiom Supply Leveling Key Set | 0-2 in Front Lift | 1999-2006 GM 1500 6-Lug Torsion Bar

Axiom Leveling Key Set | 0–2" Front Lift | 1999–2006 Chevy Silverado / GMC Sierra 1500 6-Lug | Torsion Bar Suspension

The Axiom Leveling Key Set (SKU: AXGMKEY99) provides up to 2" of front lift for 1999–2006 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks equipped with 6-lug torsion bar front suspension. Forged steel keys replace the factory torsion bar keys and index the torsion bar at a higher preload position, raising the front of the truck to correct factory rake and level the stance. Actual lift achieved varies based on torsion bar condition and factory preload — up to 2" is typical on trucks with unworn torsion bars. Corrosion-resistant finish. Direct bolt-on installation. Front-end alignment is mandatory after installation.

Verified Fitment (OFAS Standard)

• Chevy Silverado 1500 6-Lug (Front): 1999–2006 — torsion bar front suspension
• GMC Sierra 1500 6-Lug (Front): 1999–2006 — torsion bar front suspension

Does NOT fit: 2007 or newer Silverado/Sierra 1500 (switched to coil spring front suspension — no torsion bar). Does not fit 4-lug Silverado/Sierra 1500 (different front suspension). Does not fit Silverado/Sierra 2500HD or 3500HD (different torsion bar key size — see AXGMKEY10 for 2001–2010 HD). Does not fit Colorado or Canyon (different platform). Confirm 6-lug configuration and torsion bar suspension before ordering.

Technical Specifications

• SKU: AXGMKEY99
• Type: Torsion bar leveling key set
• Front Lift: 0–2" (varies by torsion bar condition and factory preload)
• Rear Lift: None — front leveling only
• Construction: Forged steel — corrosion-resistant finish
• Installation: Direct bolt-on replacement for factory torsion bar keys
• Weight: 9 lbs
• Application: 6-lug torsion bar 1500 — daily driving, towing, hauling

Installation Notes

• Alignment mandatory: Full front-end alignment (caster, camber, toe) is required after installation. Torsion key indexing changes front suspension geometry — do not drive the vehicle until aligned by a qualified alignment technician.
• Actual lift varies: Lift achieved depends on factory torsion bar preload and bar condition. Trucks with already-cranked factory keys may achieve less than 2". 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 GMT800 1500 torsion bar 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: Torsion key leveling extends front shock travel. Verify front shock travel is compatible with your achieved lift height before ordering replacement shocks.
• Torsion bar condition: Inspect torsion bars for cracks, corrosion, or fatigue before installation. Worn or cracked torsion bars should be replaced before indexing to a higher preload position.
• Torque specs: Torque all suspension hardware to OEM specification for 1999–2006 GM 1500 (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 2007 or newer Silverado/Sierra 1500 — coil spring front suspension, no torsion bar. Do not install on 2500HD or 3500HD — different torsion bar key size. Do not drive the vehicle until a full front-end alignment has been completed. Do not index torsion bars beyond their rated preload range — over-cranking can cause torsion bar fatigue and failure. Once installed, the kit is non-returnable.

What is your current tire size, intended use (daily/tow/off-road), have you confirmed 6-lug configuration and torsion bar condition, and what is your target lift height?