One of the trucks I have been working on

Unfortunately, this is a great idea, that several, including myself, have tried and failed at. At least to get any kind of usable speed. Problem is driveshafts, once you get a locker, because nothing else will work, they will twist. Stock's, Jato's, MIP's, even the FLM's will not hold up to the power of 3s, and truggy tires. Since all the weight is in the rear they actually get very good traction. The only thing I've come up with is custom driveshafts. If your willing to go slow, under 35, and use a loose slipper it can work. So good luck man. :D