{"product_id":"4-inch-lift-kit-m1-chevy-silverado-gmc-sierra-1500-4wd-1999-25840-rc","title":"4 Inch Lift Kit | M1 | Chevy Silverado \u0026 Gmc Sierra 1500 4wd (1999-2006 \u0026 Classic)","description":"\u003cp\u003e\u003cstrong\u003eBuilt for Silverado and Sierra 1500 owners who want a commanding lift without factory-style compromises\u003c\/strong\u003e, this Rough Country 4\" NTD Suspension Lift Kit delivers genuine ground clearance and the tire clearance to run 33\"–35\" rubber. The system retains your truck's torsion bars, factory ride quality, and axle alignment — no major driveline rework needed.\u003c\/p\u003e\n\n\u003cp\u003eInstalled and serviced at \u003cstrong\u003eRoad Runner Wheels \u0026amp; Tires\u003c\/strong\u003e — \u003cstrong\u003e1585 Roswell Rd, Marietta, GA 30062\u003c\/strong\u003e. Most lift kits go in the same day. \u003cstrong\u003eLease-to-own with Acima\u003c\/strong\u003e starts at $10 down — no credit needed. Call \u003ca href=\"tel:+16784006467\"\u003e(678) 400-6467\u003c\/a\u003e to schedule.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront and rear lift-kit boxes\u003c\/strong\u003e — precision-engineered crossmembers, differential-drop brackets, and non-torsion-bar drop brackets that keep everything tucked and aligned.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifted front knuckles (driver \u0026amp; passenger pair)\u003c\/strong\u003e — raise the front end while maintaining factory geometry and axle position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5\" rear blocks\u003c\/strong\u003e — support the rear frame and allow up to 33\"–35\" tire fitment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM1 Monotube shocks (front and rear pair)\u003c\/strong\u003e — nitrogen-charged for consistent damping, comfort on-road, and control off-road.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCV spacers, sway-bar links, and protective skid plate\u003c\/strong\u003e — complete the system with all brackets, fasteners, and shields needed for a clean install.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFrame-bracket and differential modification required. Not a direct bolt-on; structural work is part of the install.\u003c\/li\u003e\n\u003cli\u003eDoes \u003cstrong\u003enot fit 1999 OBS (old body style)\u003c\/strong\u003e models — fitment is 2000–2006 and 2007 Classic models only.\u003c\/li\u003e\n\u003cli\u003eFactory-painted bumpers will require valance and bumper trimming for wheel clearance.\u003c\/li\u003e\n\u003cli\u003eIf your truck is equipped with factory 17\" wheels and you're purchasing new wheels, the new wheels must be 17\" or larger.\u003c\/li\u003e\n\u003cli\u003eTorsion bar removal tool (Rough Country #1067) is recommended for faster, easier installation.\u003c\/li\u003e\n\u003cli\u003eAuto Trac systems remain fully compatible; no recalibration needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy customers pick this at Road Runner\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFactory-geometry suspension — caster and axle angles stay true, reducing premature wear and maintaining drivability.\u003c\/li\u003e\n\u003cli\u003eRough Country lifetime warranty backed locally by our team — no mail-in hassles.\u003c\/li\u003e\n\u003cli\u003eProfessional install by technicians who perform these kits every week — frame work, differential drops, and shock tuning all done right.\u003c\/li\u003e\n\u003cli\u003eAlignment performed in-house as part of every lift install — ensures tire life and straight tracking after your lift is complete.\u003c\/li\u003e\n\u003cli\u003eFinancing tied to your in-house quote — lease-to-own through Acima with instant approval.\u003c\/li\u003e\n\u003cli\u003eComplete kit — nothing left out; you get crossmembers, knuckles, blocks, shocks, links, and skid plate in one box.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eReady to build it?\u003c\/strong\u003e Call \u003ca href=\"tel:+16784006467\"\u003e(678) 400-6467\u003c\/a\u003e or visit us at 1585 Roswell Rd, Marietta, GA 30062. Hablamos Español.\u003c\/p\u003e","brand":"Rough Country","offers":[{"title":"Default Title","offer_id":53816945443029,"sku":"25840","price":1875.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4095\/3045\/files\/z48_m2ry.jpg?v=1778874773","url":"https:\/\/roadrunnerwheels.com\/products\/4-inch-lift-kit-m1-chevy-silverado-gmc-sierra-1500-4wd-1999-25840-rc","provider":"Road Runner Wheels \u0026 Tires","version":"1.0","type":"link"}