Are you using the stock clutch bell with the upgraded clutch.
This car should have a 2 shoe clutch<white clutch shoes>
The clutch should never have to "wear" in.
Either the bell is dragging on the shoes, or the flywheel is the wrong one for that clutch bell.
If a bearing disintergrated, make sure there are no burrs inside the clutch bell from the old bearing.
You should be able to assemble everything smoothly with the bearings, and then set the end gap for the clutch bell
[COLOR="Red"][FONT="Comic Sans MS"][/FONT][/COLOR]BRC358http://www.kamikazercracing.com