So it would be fare to say that with the weight on the damper, the motor is externally balanced and the converter and flywheel would need to comply. I would think the flywheel is external since the motor has the externally balanced damper weight, maybe. Pulling the tranny would be the only way to tell.
On the manual pull the inspection cover and look at the engine side of the flywheel for a cutout, bar the motor over 360 to check the whole thing.
On an auto same thing, pull the dust shield Andy see if there are large weights on the engine side of the converter. Not real small weights but a large one or two.
