My truck is making a rattling noise when the clutch is pushed down, but only after it is put into gear.

When I push down the clutch, the noise isn't there.. but when it is put into gear, with the clutch disengaged, the noise comes and doesn't go away until clutch is engaged.

Thought it was throwout bearing at first, so we dropped the transmission to replace it but when we took a look the throwout didn't seem damaged or like it needed replaced.

Called around was told it was the input bearing, but after seeing some posts and videos that say the input bearing makes noise when the clutch is engaged, I'm lost.

Any thoughts?

2001 Ford Ranger Edge 3.0L 2WD Standard