Combo kits offer the best bang for the buck by combining a front leveling kit with a small body lift to offer clearance for larger tires while maintaining factory ride quality and handling characteristics. This 3.5" combo kit for the Silverado/Sierra combines a 2" torsion bar keys with a 1.5" body lift to allow clearance for 33" tires.. Bumper hitch? Rear bumper brackets are for appearance only and not rated for towing. Frame mounted tow hitches are recommended for towing purposes. Fitment: Will NOT fit 2007 "Classic" models. If you have a 2007 Classic, see kits for comparable 1999-06 models. Fitment: Will NOT fit Denali models.. Front and rear bumper relocation brackets maintain factory look. Zone Offroad 07-13 Chevy Silv/GMC Sierra 1500 3.5in Combo Kit. Maintains factory ride quality and handling characteristics. Detailed step-by-step instructions and Zone Offroad decals. Grade 10.9, heavy-duty automotive body bolts included. 100% bolt-on design for easy installation. 07-13 GM 1500 3.5in Combo Kit. no strut compressor required. Zone 3.5" Combo Lift Kit. 3.5" Combo Lift Kit. Suspension Lift Kit

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