Getting to it too!!! 1967 Barracuda Coupe

I bought original, used windage tray hardware from Bill Rolick. I spoke with him at Carlisle. He said that he had a few sets back in Jersey. They are not listed on his web site. No additional washers are needed with original hardware. You might want to give him a call.
Bill Rolik Enterprises - N.O.S., Reproduction, and Replacement Chrysler Parts