Axel Inquirey
Another thing to watch for is the length of the tapered section of the axel. True a-body axels are about 1/4 inch shorter from the housing flange to the wheel mounting surface of the axel. This makes no difference in performance but does make a difference in your brake setup. If you get axels that are of the longer tapered section then you will have to change your entire rear brake setup.
Jack