My e-revo brushless edition build

Hi, I've been scrolling thru your notes here. Im new on this forum or to any I should say. I have to tell ya! You opened my eyes to a whole new way of looking at my revo! Ive been bac into RC for about a year and searching this dam computer for fix's, how to this, how much that, I dont have a big support network built up, but Its looks to me like, You just have to try it, break it, build it, tweak it. Like your style! The Ofna hub thing is slick. Anyway I bought aluminum outer dif cases for a revo and Im about to put em together,Im having a hard time deciding oil wt for the F +R. I want to have a crossover revo if u kno what I mean. hardcore offroad/street? is it possible?