just for reference, the mount will not work on the G3, because you need to have those two holes in the x-brace... same reason why the v1 slipperential won't fit. but according to Mike, you can drill the wholes yourself if you're very carefull, without any detriment to the strength of the x-brace. but if you have an older gmaxx of g2r it'll work with the wholes...