Flywheel question

Guys, have a pristine, low mile 66 hardtop. Put a different solenoid and a heat shield on the starter. Put the starter back in and had a helluva time shimming the starter. Then noticed the flywheel has a slight wobble in it. So obviously this is why I have the shim problems. Now this car runs perfectly, so it's not a crankshaft issue. Anyone have any suggestions as to why this flywheel doesn't run true, and how to fix this problem?? Thanks.
Jeff

Did you remove the flywheel to check it?



'68 GTO

CHECK THE NUTS ON THE FLYWHEEL THEY MAY HAVE COME LOOSE.
TIGHTEN TO TORC. LBS
MARV