The truck stopped shifting out of first and after looking around online for a while I decided to pull the governor and take a peek. Sure enough the gear at the end of it is completely apple cored. I can't get any movement out of the thing regardless of where the flyweights are (in or out). How would one that was still good be functioning and tested? Got a new one that will be here first thing in the morning but I'd love to know more about how it all works. This seems to be a fairly common issue in the TH350 trans, what exactly causes it? Any preventative measures that can be taken?