I was under the 84 fox and saw the flywheel a little exposed. Is there a piece missing or should I just get a plate and cut it to fit? Or is leave it alone an option?
you are missing the engine plate. You should put one on as it protects the flywheel/flexplate, starter, etc. Unfortunately to put it on you have to remove the transmission. Anyways here it is from 50resto engine plate - LRS Search