The only reason I asked about the pilot bushing is some times people make the mistake of greasing it and that usally leads to grease flying out and contamminating the clutch.
Sure sounds like a clutch issue and not pinion angle.
My pinion angle question really is derived from a couple of guys sticking their head under the car and saying it appears the angle is positive. I'm just moving forward in verifying that angle with a finder just to rule it out. 5-7 degrees is still not much even to the eye and I also still have not run into anyone that actually has had an issue in the past with pinion angle being positive causing clutch chatter.
