I have discoverd I have 5.13 gears to go along with my 4spd.

I feel pretty good about the MPG I am getting with 5.13 gears.

But I plan on changing to 3.54 gears and putting on some taller tires(running 235/75/r16 now). Leaning out my motorcraft carb. bringing in some colder air to the carb air filter. And some other things. I will let you know. I am not talking towing with this ring. This is my daily driver, kid hauler, occational hunting fire wood hauling rig.

So far I have not heard of any one getting over about 15MPG.

Greg still want to try and get better than 15MPG.