{"product_id":"axiom-supply-shock-extension-kit-gm-1500-6-lug-truck-silverado-sierra-1999-2006","title":"Axiom Supply Shock Extension Kit | 0-2 in Front Lift | 1999-2006 GM 1500 6-Lug","description":"\u003ch2\u003eAxiom Shock Extension Kit | 0–2\" Front Lift | 1999–2006 Chevy Silverado \/ GMC Sierra 1500 6-Lug\u003c\/h2\u003e\n\u003cp\u003eThe Axiom Shock Extension Kit (SKU: AXGMSE99) is engineered for 1999–2006 Chevrolet Silverado 1500 and GMC Sierra 1500 6-lug trucks running 0–2\" of front lift via a leveling key set or mild lift system. When the front end is raised, the factory shock mounts move relative to the shock body — if the shock is not repositioned, it can operate outside its designed travel range, causing over-extension at full droop, premature shock wear, and reduced damping performance. These extensions reposition the factory shocks to maintain correct travel and preserve ride quality. High-strength metal construction with corrosion-resistant finish. Direct bolt-on installation — no cutting or modification required.\u003c\/p\u003e\n\n\u003ch2\u003eVerified Fitment (OFAS Standard)\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChevy Silverado 1500 6-Lug (Front):\u003c\/strong\u003e 1999–2006 — 0–2\" front lift\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGMC Sierra 1500 6-Lug (Front):\u003c\/strong\u003e 1999–2006 — 0–2\" front lift\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes NOT fit:\u003c\/strong\u003e 2007 or newer Silverado\/Sierra 1500 (switched to coil spring front suspension — different shock mounting geometry). Does not fit 4-lug Silverado\/Sierra 1500 (different front suspension). Does not fit trucks with more than 2\" of front lift — a longer extension is required. Does not fit 2500HD or 3500HD (different shock mounting — see AXGMSE11 for 2011–2026 GM HD).\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e AXGMSE99\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Shock extension kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLift Range:\u003c\/strong\u003e 0–2\" front lift\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e High-strength metal — corrosion-resistant finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct bolt-on — no cutting or modification required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e 1999–2006 GM 1500 6-lug — leveling key sets and mild front lift systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhen to Use Shock Extensions\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAfter installing a leveling key set (AXGMKEY99) that raises the front suspension 0–2\"\u003c\/li\u003e\n\u003cli\u003eWhen factory shocks are topping out or over-extending at full droop after a leveling installation\u003c\/li\u003e\n\u003cli\u003eWhen upgrading to aftermarket shocks that require repositioning for correct travel at the new ride height\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLift height confirmation:\u003c\/strong\u003e This kit is designed for 0–2\" of front lift. Do not install on trucks with more than 2\" of front lift — a longer extension is required for correct shock travel at higher lift heights.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6-lug confirmation required:\u003c\/strong\u003e Confirm your 1999–2006 Silverado\/Sierra 1500 is the 6-lug configuration before ordering. 4-lug models use different front suspension geometry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock travel check:\u003c\/strong\u003e After installation, verify shock travel at full droop and full compression. The shock should not top out at full droop or bottom out at full compression with the extension installed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePairing recommendation:\u003c\/strong\u003e Install shock extensions at the same time as the leveling key set (AXGMKEY99) to ensure correct shock travel at the new ride height from the first drive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTorque specs:\u003c\/strong\u003e Torque all shock mounting hardware to OEM specification for 1999–2006 GM 1500 (verify in GM service manual or Axiom install sheet).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRe-torque:\u003c\/strong\u003e Re-torque all hardware after the first 500 miles of driving following installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Warning\u003c\/h2\u003e\n\u003cp\u003eDo not install on 2007 or newer Silverado\/Sierra 1500 — coil spring front suspension uses different shock mounting geometry. Do not install on 4-lug models. Do not install on trucks with more than 2\" of front lift — incorrect extension length will not restore proper shock travel and can cause shock damage. Verify shock travel at full droop after installation before driving. Once installed, the kit is non-returnable.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is your current front lift height (confirm 0–2\"), and are you pairing this with the AXGMKEY99 leveling key set — confirm 1999–2006 6-lug platform before ordering?\u003c\/strong\u003e\u003c\/p\u003e","brand":"Axiom Supply","offers":[{"title":"Default Title","offer_id":51430748029249,"sku":"AXGMSE99","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/1284\/1793\/files\/AXGMSE99_e7998457-bef7-49d2-ba6c-59079205445b.png?v=1772305953","url":"https:\/\/obsidianforgedautosupply.com\/products\/axiom-supply-shock-extension-kit-gm-1500-6-lug-truck-silverado-sierra-1999-2006","provider":"Obsidian Forged Auto Supply","version":"1.0","type":"link"}