By the way, I put 33X12.5 tires on my truck (No body lift) and found that even with the turbo and probably around 150 hp that 4th gear got used a ton more than same setup with 31X10.5's. I saw that the turbo was on almost all the time with the bigger tires, indicating a big hit in gas mileage. Overall acceleration was still good and the truck was still pretty quick.

85 4Runner, 4" lift, bumpers, sliders, locker