[IsaacCarlson]

dang...get a low-end cam. That can give you a little more torque on the bottom end. It might be enough to let you use 5th at 35mph. You could also pick up a small industrial turbodiesel and put it in there. Those things make some torque!! I have been looking at some for my pickup and even at full load running against the governor, they only use 1-2 gal per hour. And we don't need to run them at full load and full rev going down the road. I did the math and I gould get 50+ mpg with a small industrial turbodiesel. The reason I saw industrial is because they are more efficient and are designed to WORK all day on a tank of fuel. My dad burns about 1.5 gal/hr in his bobcat.