What are you guys running motor wize, was looking at trying to stuff a 540 long in there with a new ESC but im not sure if the 25T pinion gear will fit the 4mm shaft on the motor. Also trying to get the slop out of the suspension in the front control arms, found a video on youtube of a guy using set screws in his diff cover but he wont list the size of the set screws, he just says you have to buy them off him.