I built an air shutoff for my truck, I posted this video on facebook on one of my truck groups, there was a couple members who posted concers as to if it would kill the truck with the little hole in the plate where I drilled for the pin. I'll post the video, I figured they was all made like that, and if not how do other people do it without drilling a hole in the plate?
[ame="http://www.youtube.com/watch?v=-KSz_S8b4Wo"]Air shutoff - YouTube[/ame]