Unfortunately, you ordered the wrong part; part 2V60 does not fit your saw. According to ereplacements.com ereplacementparts.com/craftsman-137218250-table-saw-parts-c-158286_168548_172710.html
your saw requires part number 14912906 which is part number 10 in their parts diagram, called a splitter. Erplacements.com sells it for $6.41.
I have a similar saw. My model is 137.218072. I need a riving knife for it. The riving knife you bought, part number 2V60 fits my saw. It is currently discontinued. Would you be willing to sell it to me?
Thanks, Gerald Ellis