the weight of the flywheel means nothing it is the amount of the imbalance that is recorded, if you have this figure you can balance a 14" flexplate to a 35" 100lb. wheel. its the amount of the imbalance that you are duplicating, not the size or weight of the object.
a good balance shop keeps records of all work done and all weights involved, using these figures a new component rematch is a breeze. In the case of the heavy wheel, it is mounted to a mandrel and spun up, then modified to match (drill or weld) the exact imbalance of the original.
[ March 02, 2003: Message edited by: BOBCRMAN@aol.com ]</p>