AAngel, thanks for all the info. It sounds like you and I bash our trucks similarly so I will take your advise to heart and look into getting a T4 instead of trying to bulletproof the tranny of my Rusty. I'll just run 6 or 7-cell packs on the Rusty and do 3S speed runs with the T4 when I feel the need for speed.

Thanks to all others that have posted advise as well. It's great to learn so much about the T4 in such a short period of time. And thanks, ***RC*** and others, for the info about the steel diff/aluminum case for my Rusty. It's good to know that is a viable option for me as well.