So I have a LS DC manuel, and all of a sudden its hard to put into gears. Third gear grinds it always has since I got the car, like every DC I've ever owned. But (The Problem) ok at high RPMs in every gear it will NOT go into gear until the RPMs are down to 3Grand. I changed the tranning oil just today, and still does it. Has anyone else had this problem? Is it the tranning? My next step is the clutch, but fourth started grinding when this happend to so I would think grinding is tranning. Right? Any input would help.