hey cheech. i was reading on another forum and i believe it was you who was talking about the difference in the evader ext and st on rc universe. if not, im sorry. anyways.. i have upgraded to brushless on my ext and would like to know what all i can do for the tranny. everyone says the b2 upgrade, but now i've heard you cant do it on the ext because it has a gear diff, not the ball diff.. is there any way to switch the two? i'm new to the evader so.. please help. lol