I have 01 F-250 that I have lifted 8 and is on 40's. I am looking to get my transmission and shifting in order with the size of my tires. Would the Superchip be a way to go? And will it help with my mileage, and transmission life? Is it a good chip to go with and is it easy to use? I've done a bit of research myself, but I want to know a little more from others.