Thing is, you REALLY don't know what you will get nowadays. Our brand at work is Brake Best. We routinely get Raybestos, Wagner, EIS and other parts in with a Brake Best part number sticker on them. So good luck.
This has been happening in the parts industry, for years..( The buyout of parts from chain/independent store buyouts/& the logistics of reboxing different brands.) I was taught as a tech," rebuild the OEM part that came off the car..." FWIW,your statement is honest,at the day is long.( think summer solstice) This o.p.'scase: Find what you can...I.T.T.C...
You are asking for the Kelsey Hayes 4 piston calipers.. (Rare & expensive)
Read this...https://www.google.com/url?sa=t&sou...OjqWAcn-Bhy0nJUjw&sig2=KKy8OR6h-aI0TAD5T0AMqA
And this....https://www.google.com/url?sa=t&sou...orvYmqpVcuF_9gL7A&sig2=QNWYzN23mNdQgX06rw95kw
Unless you are locked into four piston calipers, find a set of '73 up spindles...
