Family haulers, tow rigs, and full-size work trucks all lean hard on their brakes, and the Power Stop Z36 Truck & Tow Brake Upgrade Kit K2009-36 is a brake upgrade for GM trucks, SUVs, and vans. The kit covers a wide range of 1999 to 2008 General Motors models, including the Chevrolet Silverado 1500, Suburban 1500, Tahoe, Avalanche 1500, Express Van, and Astro, the GMC Sierra 1500, Yukon, Yukon XL 1500, Savana, and Safari, and the Cadillac Escalade, Escalade ESV, and Escalade EXT. Match your vehicle's year, model, and rear brake setup against the fitment list below before ordering. Features:• Brake upgrade for GM trucks, SUVs, and vans used for towing and hauling• Fits 2WD and 4WD versions of many SUVs• Fitment notes call out single and dual piston rear calipers• Includes 6 lug Silverado and Sierra 1500 applications• Covers Silverado SS and Silverado and Sierra Hybrid modelsSpecs:• Brand: Power Stop• Product Number: K2009-36• Product Type: Disc Brake Kit• Series: Z36• Application: Towing, hauling, off-road• Vehicle Type: Trucks, SUVs, and vans• Model Years: 1999 to 2008• Vehicle Makes: Chevrolet, GMC, Cadillac• Wheel Lugs (Silverado and Sierra 1500): 6 lugFits: Fitment varies by rear caliper type (single or dual piston), axle (limited slip or not), QuadraSteer, and rear disc brakes. Confirm your configuration.1999-2005 Chevrolet Silverado 1500 (6 lug), including 2005 Base, LS, LT, WT, and SS2003-2005 Chevrolet Silverado SS2005-2006 Chevrolet Silverado 1500 Hybrid (6 lug) and 2007 Silverado 1500 Classic Hybrid (6 lug)1999-2005 GMC Sierra 1500 (6 lug)2005-2006 GMC Sierra 1500 Hybrid (6 lug) and 2007 Sierra 1500 Classic old body style Hybrid (6 lug)2000-2006 Chevrolet Suburban 1500, 2WD and 4WD (6 lug for 2000-2002)2000-2006 Chevrolet Tahoe, 2WD and 4WD (rear disc on 2000 models)2002-2006 Chevrolet Avalanche 1500, 2WD and 4WD2000-2006 GMC Yukon and Yukon Denali, 2WD and 4WD2000-2006 GMC Yukon XL 1500, 2WD and 4WD2002-2006 Cadillac Escalade and Escalade EXT2003-2006 Cadillac Escalade ESV2003-2005 Chevrolet Astro and GMC Safari2003-2008 Chevrolet Express Van 1500 and GMC Savana 15002003-2005 Chevrolet Express Van 2500 (6 lug) and GMC Savana 2500 (6 lug) GM trucks, SUVs, vans Chevy, GMC, Cadillac Check rear caliper type | PowerStop Power Stop Z36 Truck & Tow Brake Upgrade Kit, Chevrolet, GMC, and Cadillac Trucks and SUVs