well one more question, while doing a little research, I have realized that my gear ratios with my 4speed and 4speed transfrer case suck, so I am looking into options to lower them, I see that advanced adapters makes a crawler box that makes your setup 5 inches longer, what over options are out there, can I put a sm420 to a 2f and still use my factiory tc, please help, I need to go slower!lol