Started with 35's and a six inch lift. now it's on 38.5 groud hawgs with yukon 4.56 gearing.  under the hood is the bullydog, aFe stg2 intake, 4" magnaflow exhaust no cat, dynomite diesel 50hp injectors.  tranny has been worked over and a three inch body lift made room for the new tires. inside has a flip down screen two kicker tens and 800 watts of kenwood power along with kenwood highs. good video on youtube..search ( deep water duramax )