{"product_id":"rough-country-4-inch-lift-kit-m1-silverado-sierra-1500-4wd-99-06","title":"Rough Country 4 Inch Lift Kit | M1 | Silverado \u0026 Sierra 1500 4WD (99-06)","description":"\u003cp\u003eUpgrade your truck with Rough Country's 4\" NTD Suspension Lift Kit designed for easier installation, superior handling, and a sleek, aggressive stance from every angle. This kit delivers unmatched ground clearance and factory-like ride quality while keeping all components optimally positioned. Run Bigger Tires: A set of lifted front knuckles and 5\" rear blocks allow your 1500 to run up to 33\" tires with ease. Precision-engineered drop crossmembers, differential drop brackets, and non-torsion bar drop brackets keep everything tucked away for a clean look and peak performance. Fully Loaded Kit: This suspension lift includes front CV spacers, differential drop brackets, sway-bar links, and a protective skid plate giving you everything you need in one complete package. Customizable Shock Options: Tailor your ride with multiple shock choices, including our nitrogen-charged N3, V2 Monotube, or M1 Monotube shocks, so you get the perfect balance of comfort and performance. Whether you're hitting the trails or cruising the streets, this 4\" NTD Lift Kit delivers the perfect combination of ground clearance, handling, and aggressive looks. With premium components, customizable shock options, and a hassle-free installation, there's no better way to elevate your ride. Upgrade today and take your truck to the next level!\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory-Mounted Torsion Bars:\u003c\/strong\u003e Retains the original torsion bar location for a seamless, factory-like fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreamlined Installation:\u003c\/strong\u003e Redesigned components ensure a hassle-free, more efficient setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Ride Quality:\u003c\/strong\u003e Engineered to maintain the smooth, comfortable ride you expect.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto Trac Compatibility:\u003c\/strong\u003e Fully compatible with models equipped with Auto Trac systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Ground Clearance:\u003c\/strong\u003e Provides superior lift without compromising performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal Axle Alignment:\u003c\/strong\u003e Keeps axles in their factory position and angle for reduced wear and improved longevity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Modifications Required:\u003c\/strong\u003e Installs without the need for drivetrain or exhaust adjustments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetains Factory Travel Stops:\u003c\/strong\u003e Designed to reuse OEM compression travel stops for consistent suspension performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfigurable Shock Options:\u003c\/strong\u003e Choose from our nitrogen-charged N3, V2 Monotube, or M1 Monotube shocks—the power to customize your ride is in your hands!\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e 25840\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003ca href=\"https:\/\/s3.amazonaws.com\/roughcountry\/install\/921272200C.pdf\" target=\"_blank\"\u003eInstallation instructions (PDF)\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNotes: Frame bracket and differential modification required. Models equipped with factory-painted bumpers will require trimming to the valance and bumper. Does NOT fit 1999 old body style (OBS) models. For a visual, please click here . If equipped with factory 17\" wheels and purchasing new wheels, the new wheels must be 17\" or larger. For ease of installation, a torsion bar removal tool is recommended 1067 .\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePlease confirm your exact vehicle, year and trim before ordering.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Rough Country","offers":[{"title":"Default Title","offer_id":50019192176711,"sku":"RC-25840","price":1115.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/5953\/2615\/files\/z48_m2ry.jpg?v=1793985815","url":"https:\/\/easternperformance.com\/products\/rough-country-4-inch-lift-kit-m1-silverado-sierra-1500-4wd-99-06","provider":"Eastern Performance Cycles","version":"1.0","type":"link"}