[68SSCamaro]

That looks like the one I have for a drum brake 68 Camaro. You need to get the casting number and look at the stamped letters on the front machined pad. There should be a reference for that stamped code in the 69 books. My 68 is casting number 5452310 and there is a casting date too. My stamp is BS but I don't know what is correct for 69 Power Drum in your car. Hope this helps. Martin