Can run 33-inch tires on factory 20-inch wheels. Provides highly sought level stance. High clearance crossmember design gives unmatched ground clearance. 100% precision laser cut materials using the latest computer aided design process. Fabricated blocks are stronger and offer a longer lifespan than cast blocks. Includes application valved V2 Monotube series shock absorbers which offer the best in balanced performance for on and off-road use.Requires cutting and drilling. Does not fit Hybrid eAssist models Does NOT fit models with stock Cast Steel control arms Does NOT fit GMC Denali models with Magnetic Ride Control. If wider than 33x12.50 tires are used, offset wheels will be required and trimming may be required. 18-inch or larger wheels are required. Please view installation instructions for complete information on proper tire/wheel combinations. If truck is equipped with a mass damper on the front differential, the damper must be removed.8-10 hourshttps://s3.amazonaws.com/roughcountry/install/92122400.pdf2014-2018:4WD:Chevy:Silverado 1500;2014-2018:4WD:GMC:Sierra 1500
