1998 international 9400 n14 red top

Throw out bearing on clutch assembly.

 

I know it sounds bad, but many times it's nothing to worry about. Of course, I'd have to hear it, but we have also experienced this after doing a clutch job. Some clutches and bell housing are so dirty and caked full of grease that we have to wash them out. It is common to have a good layer of an inch or more think of grease, dirty and clutch dust built up all over in there. This acts as a great sound barrier and absorber. Then we clean everything out and now the bell housing sorta acts like an echo chamber and those little noises sound louder and worse than they actually are. I'm not saying you have nothing wrong, but I am saying not all noises mean something is wrong.
Make sure your idle speed isn't too low. I recommend unbolting the clutch from the flywheel and turning it 180 degrees and rebolt it. This can be done with the trans still installed. You just have to reinstall the spacer blocks between the clutch and release bearing to take the pressure off the flywheel.