10" Drum hub/spindles for A-body 66-72

Looking for either 1 or a set. I bought a set from craigslist and it turns out 1 had a drum with lugs cast into it and the other was a slide off drum. I need the one where the drum comes off without the lugs. I found one at a junkyard but it must have been from a 9"??. Ive never seen this and im not sure if theyre hard to find??? Looking to do this this weekend and will pay to have this 2 day shipped if anyone has one.

Thanks again!!