20-Current GM 2500;Cleanest way to run a 37"" tire;Low center of gravity for improved off-road capability without sacrificing towing ability;Improved on-road ride quality over stock;Improved off-road performance;Bolt-on installation, no frame modifications;Includes Pro-M 2.0 Monotube Shocks;For the best ride quality and performance Pro Comp recommends 17X8.5 +25MM wheels and 315/70/17 LRD OR LRE tires;California Residents: WARNING