Distribution block fitting size ?
I don't have all the answers but can get you started. Happened to be working on my brakes so can share some details. Car is a '68 cuda w/disc brakes but might be similar to yours. My distribution block has four fittings the same size on both sides of your picture. I believe they are 1/8" flare fittings. The bottom fitting is blocked off. The top one is the next larger size flare fitting. I don't know the size. One picture shows a 1/8" flare fitting next to it so that you can see that is larger.
I don't have all the answers but can get you started. Happened to be working on my brakes so can share some details. Car is a '68 cuda w/disc brakes but might be similar to yours. My distribution block has four fittings the same size on both sides of your picture. I believe they are 1/8" flare fittings. The bottom fitting is blocked off. The top one is the next larger size flare fitting. I don't know the size. One picture shows a 1/8" flare fitting next to it so that you can see that is larger.
