well i did trail gears 4.7 gears cause they were a good deal at the time and tg wants to hassle me on replacing it i broke the input faster than you can blink so then i had a stock turbo t-case and threw it in and that held up allot better and longer put then eventually i broke it so i no i got to do gears in the axles but i want to no if i can use trail gears 4.7 gears but use marlins 4.7 input to save a few bucks..any and all info. is good so thanks