http://www.fioroni.com/inglese/prodo...ngua=ita&pag=2
Looks like those "tractive" diffs are used front, center and rear for 1:8...
Considering how much weight we re-add to our cars with LiPo, fitting diffs like this wouldn't be a problem weight wise at least...
Oh! And I remember reading about THE car and some very small diffs... are they std. diffs?