- Official Post
Here is an Ebay auction for an NOS C5ZZ 2B091 B disc brake proportioning valve by Ebay member "yourinternetauctionstore" with a Buy-It-Now of $550.00:
NOS 1965 1966 SHELBY MUSTANG DISC BRAKE PROPORTIONING VALVE C5ZZ-2B091-B CT39-2
New old stock discontinued Ford part made by Kelsey Hayes. Shelf wear - paint loss.
This an original Ford part. There are not many of these NOS parts left. When they are gone they are gone forever. So don't miss out.
https://www.ebay.com/itm/NOS-1965-1…ity!91387!US!-1
-Fred-