Chasing a squeal, need opinions.

[x33rs]

The roller pilot bearings aren't necessary for a muncie since that trans uses a ball bearing for the input shaft. Those roller pilot bearings become necessary on setups like a TKO for example because they use a taper input bearing that can not tolerate a bunch of side to side movement.
I do see roller pilot bearings quite frequently installed in muncie applications though. Seems like many clutch kits just come with it automatically these days.

I'm not sure if this was mentioned, but does the car have a roller camshaft in it? I've had a roller lifter fail (on more than one occasion) and they at first create a chirp that turns into a squeak or squeal. What throws it off is that the sound will transmit right through the front timing cover from the cam button and make it sound like a water pump squeaking.

Just a thought.