[70SBC10BOB]

The rotors should be available at any race shop (not speed shop) that sells rotors to late model dirt or asphalt cars. They usually have 8 mounting bolts most of them are the same. You will need to know the diameter 11.75 or 12.19. And the thickness .75, 1.0 or 1.25. Slide the hats off, unbolt the rotor, assemble in reverse order. I would also use new grade 8 bolts and safety wire. It is not that big a deal.

Good luck.