Thanks for all the offers and suggestions. Yesterday, I obtained an entire supercharger unit for the shelf as well as a stock pulley to install after replacing the bearing in it along with a replacement engine cover. The replacement is stock 74mm and the one that broke at the grooves was 64mm. My magnet test wasn't accurate because the stock pulley is stainless steel not iron. Since the rescue SRT had an aftermarket pulley on it, I now wonder if it had a "tune" as well. I knew it was a little stronger than my black SRT, now I know why. I suppose today I will continue assembling the parts for the repair and look over the threads to order two scattershields as insurance against future grenading. I WANT TO ADD A GREAT BIG THANK YOU TO CHUK_138 FOR HELPING ME OUT WITH THE PARTS AND TO ALL WHO RESPONDED WITH HELPFUL SUGGESTIONS.....peace