I'm new to the whole diesel thing and I've bought an 02 4wd 3/4 ton and so far i've put full 5 inch exhaust, intake, and a power puck and my transmission seems to be already struggling to keep up with the power. I've purchased a valve body kit and was told by someone that I should do a rebuild on the trans, before i put in the shift kit since it has 95,000 miles on it. I plan on taking out the power puck and putting in a edge comp but dont want to do so until I know it wont eat the trans up. With the edge in it I also plan on putting a torque lock up switch in it.