Trying to identify brakes

Ya that's a 73 up B body pin type caliper.
If you stay with the pin type, you need 70-74 E body calipers. (70-72 B are the same, too)
If you have the calipers mounted towards the Front, the B & E body flex hoses work.
If you have calipers towards the Rear, i can't give you a hose recommendation, as i don't know, what they use for rear mounted calipers.
Good luck.

The 69 Dart I bought a few months ago was originally a manual drum brake car all around, at some point it had the front swapped for a disk setup, don't like it much as they notched the lower control arm to give clearance to the brake hose, anyway here is a picture of some numbers on the caliper, haven't found anything from google, anybody able to tell what these are off of?

View attachment 1715388029

I just went thru this myself, , that is a 73/74 style caliper. Good news, the 71-72 B body pin types work as well, but have the hose mounted in a different location that allows it to clear. As for hoses, the B and E ones will still work, but ONLY with the 71/72 B body calipers. May have to swap the calipers from right to left, regardless of what they are showing on the box to get the banjo bolt to clear.