Motor went kaplooey this evening after some hard running. Got the motor out according to the how tos I found online. Now I know i dont want the same motor back and it break within another week. I want to be aable to rock crawl, but also blast through trails and mud. Any suggestions on motor? Dont want something freakishly fast or anything maybe a bit more powerful than the 12T but I could still crawl if I wanted..