Dodge Powerwagon Throwout bearing

Hey Gang, got a question about throw out bearings, on my truck’s Np435 transmission. So at high revs, or at cruise at 1800rpm and above I get a loud grind/ rattle and comes to a stop when deceleration and/ or clutch engagement. Came to be my throw out bearing, has a lot of play around input shaft. I’m assuming it should have very little to no play. Also, does the Throwout bearing always ride/spin on the pressure plate fingers?