CURT Manufacturing 31108 Features: Provides Convenient Mount For Hitch Acc. Use Hitch Mounted Acc. While Towing Trailer Easy Maneuvering At The Boat Launch/Campground Height: 20.00 Width: 10.00 Length: 42.00 Weight: 36.00 lbs Fitment: 2007/GMC/Sierra 3500 Classic/WT Standard Cab Pickup 2-Door/8.1L 496Cu. In. V8 GAS OHV Naturally Aspirated::FrontDrilling Not Required~ Main Body Concealed~ Front Air Dam May Require Modification~ Install Time 30 Minutes^^2007/GMC/Sierra 3500 Classic/WT Standard Cab Pickup 2-Door/6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged::FrontDrilling Not Required~ Main Body Concealed~ Front Air Dam May Require Modification~ Install Time 30 Minutes^^2007/GMC/Sierra 3500 Classic/WT Standard Cab Pickup 2-Door/6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated::FrontDrilling Not Required~ Main Body Concealed~ Front A...