Axiom Supply Leveling Key Set | 2" Front Lift | Torsion Bar | 2001-2010 Chevy Silverado/GMC Sierra 2500HD & 3500HD | SKU AXGMKEY10
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Before ordering, verify your vehicle details, current setup, and SKU with OFAS fitment support so your upgrade matches your build.
Shipping & Delivery
Free shipping is available within the lower 48 U.S. states. Large or heavy items may ship by freight, and delivery timing can vary by warehouse, carrier, and product availability.
Fitment, Shipping & Product Support
The Axiom Supply Leveling Key Set (SKU AXGMKEY10) replaces the factory torsion bar keys and lifts the front of 2001–2010 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD (GMT800/GMT900 platform) trucks by 2 inches — giving a flush, balanced stance while keeping the ride smooth and factory-like. Most heavy-duty trucks leave the factory with a forward "rake" to handle heavy loads; this kit corrects that look when the truck is empty and creates extra room for larger tires. Precision-forged steel construction, corrosion-resistant finish, direct bolt-on replacement for factory torsion bar keys. Intended to be installed in conjunction with aftermarket upper control arms for proper performance. Front-end alignment is mandatory after installation.
Component Specifications
| Spec | Detail |
|---|---|
| SKU / Part Number | AXGMKEY10 |
| Brand | Axiom Supply |
| Type | Torsion bar leveling key set |
| Front Lift | 2" — fixed, not adjustable |
| Rear Lift | None — front leveling only |
| Construction | Precision-forged steel — corrosion-resistant finish |
| Recommended Pairing | Aftermarket upper control arms |
| Platform | GMT800/GMT900 — torsion bar front suspension |
| Application | Daily driving, towing, hauling — corrects factory front-to-rear rake |
| Sold As | Pair |
What Is and Is NOT Included
| Item | Included |
|---|---|
| 2x forged steel torsion key | ✓ |
| Upper control arms | ✗ NOT included — recommended pairing, sold separately |
| Shock extensions or upgraded shocks | ✗ NOT included — sold separately |
GM HD Leveling Key Platform Guide
| Platform | Years | SKU |
|---|---|---|
| GMT800/GMT900 (this listing) | 2001–2010 | AXGMKEY10 |
| K2XX | 2011–2019 | AXGMKEY11 |
| T1XX | 2020–2026 | AXGMKEY20 |
Compatible Front Shock Upgrade for This Lift
| Series | Confirmed Lift Range | Confirmed Years | SKU |
|---|---|---|---|
| Fox 2.0 Performance Series | 0–1" front | 1999–2010 (also fits select Suburban, Yukon XL, Avalanche, Hummer H2) | 980-24-663 |
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 until aligned.
- Pair with upper control arms. This kit is intended for use alongside aftermarket upper control arms for proper alignment range and suspension geometry.
- Caster correction. A 2" front lift on the GMT800/GMT900 torsion bar platform will reduce positive caster. A caster correction kit or adjustable upper control arms is strongly recommended, especially for towing or highway use.
- Shock compatibility. Torsion key leveling extends front shock travel. The Fox 2.0 Performance Series (980-24-663) is a confirmed compatible shock for this lift range.
- 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 2001–2010 GM 2500HD/3500HD.
- Re-torque. Re-torque all hardware after the first 500 miles of driving.
Verified Fitment
| Vehicle | Years | Status |
|---|---|---|
| Chevrolet Silverado 2500HD/3500HD | 2001–2010 | ✓ — torsion bar suspension |
| GMC Sierra 2500HD/3500HD | 2001–2010 | ✓ — torsion bar suspension |
| Silverado/Sierra 2500HD/3500HD | 2011 and newer | ✗ Coil spring front suspension, no torsion bar — order AXGMKEY11 or AXGMKEY20 |
| Silverado/Sierra 1500 | Any | ✗ Different torsion bar key size |
Critical Compatibility
| Configuration | Notes |
|---|---|
| 2011 and newer GM HD trucks | Does not fit — coil spring front suspension, no torsion bar |
| Worn or cracked torsion bars | Replace before indexing to a higher preload position |
| Over-indexing beyond rated preload range | Can cause torsion bar fatigue and failure |
| Aftermarket upper control arms | Recommended pairing for proper alignment range and suspension geometry |
Common Questions
Is the lift adjustable?
No. This is a fixed 2" front lift, not an adjustable system.
Do I need upper control arms with this kit?
Recommended by Axiom for proper alignment range and suspension geometry.
What Fox shock should I pair with this?
The Fox 2.0 Performance Series, SKU 980-24-663, is confirmed compatible for this lift range on the 1999-2010 GM HD platform.
Do I need an alignment after installing this?
Yes, mandatory. Torsion key indexing changes front suspension geometry — do not drive until a full front-end alignment is completed.
The Obsidian Take
The AXGMKEY10 is for the 2001-2010 Silverado/Sierra 2500HD/3500HD owner who wants to correct factory rake and gain a fixed 2" of front lift on the torsion bar platform. Precision-forged steel, direct bolt-on, pairs well with aftermarket upper control arms for proper alignment range.
The honest recommendation: inspect your torsion bars for cracks or corrosion before indexing to a higher preload — a worn bar shouldn't be cranked further. Pair this kit with aftermarket upper control arms rather than running it alone for the best alignment range and suspension geometry.
Non-Returnable Notice: Once installed, this kit is non-returnable. Confirm torsion bar condition and platform generation before ordering. A full front-end alignment is required after installation.
Manufacturer Data Disclaimer: Specifications sourced from Axiom Supply and authorized distributor documentation. Input data incorrectly described variable lift output and cited an unconfirmed Fox shock part number — corrected above to the confirmed manufacturer SKU from this catalog. Obsidian Forged Auto Supply is an authorized Axiom Supply dealer. Manufacturer specifications are subject to change without notice.