no confusion here at all (other than why the vibration is present )
yes, we started it with just the flywheel, starter, and bellhousing and there was no vibration at all.- that means it is not in the motor. (save for a balance issue which we've figured out there should not be one. everything should be zero balance)

once we put it all back together(minus driveshaft). you can start it and feel the vibration with clutch in or out. putting the driveshaft in and driving it around in gear its still there.
we are going to replace the bellhousing next after talking with jamie passon at the nationals.


this car used to run fine as is, but the vibration eventually developed and its been downhill since haha