I have a 4 speed manual trans that likes to pop out of third unless I basically hold it in (for the most part). There is a Hurst shifter in there, that is clearly somewhat new to the vehicle before I bought it last year. Is there a way to adjust the shifter so it stays in, or is it a bigger problem than that? I was told the trans got rebuilt 5 or so years back, but who knows what that means or if that's true. I figure it is either some tweeking of the shifter assembly, or maybe the 3rd gear is chewed up. I have no idea how to troubleshoot, or adjust...Anyone?