Dampner out of wack

We assumed Dads new dampner had the same TDC mark as orig 273. NOPE. So I was thinking the same thing you were with remarking it. I took 67Dart273's advice which is a good thing to do. Used a piston stop method to find TDC and marked the damper.
Then took measurements on damper (to get circumference of a circle)to make sure we were getting the right tape. Once you have circumference of the damper divide by 360(degrees in a circle) your answer should match the new timing tape. Installed new tape on the dampner....if I remember correctly, we were about 20* out from the TDC marks on damper!!

If it was me and my dampner had "spun" I would be buying a new one

For example, lets say dampner has 10" diameter right?
Formula for Circ=2 X 3.14 X Radius
so we have 2 X 3.14 X 5(radius is 1/2 of diameter)
so this works out to 31.40 inch circumference. Divide this number into 360. Which gives you 11.46* per inch on tape.

Hope this helps