WOW i took your advice and looked in the forums and i was shocked at what had been said about the xxl. NOT GOOD. Almost everybody has had problems with the idle staying high no matter what and from factory having sheared diffs. There was something else too, but i cant remember. Only like two guys had good luck. One guy ordered one sent it back and got another bad one... So much for that. The only bad things ive heard about the MGT's are the diffs (occasionally) and the body post breaking ALL THE TIME  is there a fix for that. Have you had any problems out of your diffs??