4.5" bolt pattern 7.25" rear axles

I have 7.25 4.5 axles for sale. They are out of my 47k mi 75 Scamp that has disc brakes. I was going to sell them to another member, but it fell through because.... These require 5 bolts to mount, and a 5 bolt backing plate as well. The sbp axles are mounted with only 4 bolts on the flange.