Thanks for your help!!!! It looks like I must have 51' front spindles because I don't have the wheel cyl. with the metal adjusters.I have what I think are the 51' bendix brakes with the star-type adjusters at the bottom of the of the shoes. So I think that I must need to use the 51' rear cyl. too. As for the threads; My wheel cyl.have threads inside of the ends of the cyl. There is a recessed shoulder about a 1/4 inch deep and then the bore is 1" thru and the other end is threaded the same.They are female threads. Hope that explains it. Is your link pics of the bendix brakes at the rear?
Last edited by oldburbs; 11/23/2013 11:15 PM.