ok so the best bet is to get a complete set of front and rear diff housings and all .... and then see what happens... just factory...but i don't know if my Mamba motor will smoke them or not.....if so then i am going TC5 and i have a TT-01 that i'll just replace .......i don't understand the TC3 Diff prob.....can't make it work right......and it's driving me crazy@@