I am looking for a heater vacuum switch GM 1387326 AC DELCO 15-782 Attaches to rear of heater control in dash board.
https://www.ebay.com/itm/NOS-GM-Del...ing-2-Port-Vacuum-Switch-15-782-/274454235628 I bet BrunoD has plenty of them.
Oh man. I did not see this. I got it on eBay. Thank you for the offer Bruno. Thank you very much for the lead Larry.