I was wondering this also. I'm in the process of building a pulling truck and I think I'm going to try my 3. 54's. My thinking is that with a diesel we have plenty of torque to get started but we lack top end like a big gasser. So with a high gear like this, a tall tire like yours, or the 35" boggers I'll be using and 4000rpm's we should have good wheel speed to keep the sled going... 300ft hopefully. Anybody please let me know if this will work as planned, and what gear do you use in a manual transmission to start, and low or high in the transfer case. Thanks for any input... ...