I'm curious as to how one changes the stock differential to a limited slip differential or posi traction differential. Since I do plan on the truck being a drift truck, it's something I need to look into. It it something you can do at the same time as changing gears in the diff or what? And I want to put a heavier duty dually axle, maybe from a Ram 3500, so I am sure that may affect it. Any help would be appreciated.