I have a 4" suspension lifted TJ, and I am planning on putting a 3 " body lift on it, as well as a SYE kit and custom rear CV driveshaft. What I also thought about is to make my own belly up skid plate for the trany before ordering my rear driveshaft. My plan is to make the skid plate flush with the frame. For that I need to lift the engine, what is the maximum I can lift my engine, would 2" or 1 1/2 " or even 1 " be the best? Any help with this matter would be appreciated.