doesn't need to replace the riveted piece. Replace the complete plate asembly. Piece of cake... two phillips screws at sides of the dist housing. PROBABLY will need to loose the vacuum to ( two screws more ). Needs to extract the reluctor though!

I mean If we are talking about like the Mopar piece

replacement parts comes with the plate.

thanks GOD I saved my old dist with a PERFECT pick up coil ( I just god damaged the shaft ). with your experience, will replace mine. I got MP dist