It drives great. I like it alot. Im running the stock SM465 transmission with the stock 3. 07 gears. It is a little tall with the 35" tires so i may change the gears to 3. 73 or somthing like that. I have not done much highway driving yet but i think it will easly be in the 30 MPG range. Im still doing some pump tuning and some mods it gets better with each thing i do. I just put the intercooler in with an Aurora 2000 turbo. I think better flowing higher horse injectors will be next. The little 4BT moves the truck around great though. Im in Colorado and live right at the base of the foothills. She will pull a grade with easy and plenty of power to spare.