I have carson touring car. There is problems with layshaft and diffgears. I ordered duratrax layshaft gear and replaced diff gear with one I had spare. It has chewed lot of gears and now it didnt last till 20min. Do those carson/duratrax gears fit with fg gears because I believe my diffgear is fg. I know I have to get alu motormount or at least new motor mount.