Hi all, first time poster, but I have been doing a bunch of reading. I hear there are four different styles and they all suck. Mine is a grey plastic thing and I can't seem to keep it from backing off. So my questions ar: is their a trick that I'm missing? Or should I get an aftermarket one? A skidoo one from a 2011? Or can Someone give me the measurements and thread size and pitch and I'll just make my own! I would measure myself but I'm currently on a ship in the bearing sea....