Calling all gear box guru's. I've been chasing this clutch chatter around for way to long now. The engine is a newer crate 350 and trans is a Saginaw 4 speed. I pulled said engine/trans to do some painting and change the clutch. I installed a new Hayes flywheel, McLeod clutch assembly and new brass pilot. While the trans was out I did a re-seal and noticed play in the input shaft (see video). I reinstalled engine and I still have the same chatter. I took some video's so you can check it out. Could it be the trans? The engine has new stock (front) engine mounts and new bell housing mounts. In the one video you can also see no trans movement so I doubt the install of a rear cross member, or should I still install one.