noisy clutch

[ptmoore64]

I have an"87 ford 4x4 f250 with a 6.9and 5 speed when I bought the truck I thought it needed a new clutch after replacing the clutch I found that ford in their infinite wisdom had invented a new way to generate income by creating a dual mass flywheel mine was broken and slipped just like a bad clutch so I set out to fix this I bought a single mass flywheel out of an '86 truck used my original new pressure plate and throwout bearing with a new friction disc I put this all together the truck runs and moves great but it has an annoying problem that when I'm in neutral and at idle the throwout bearing sounds like its going to rattle out this world any suggestions please.