Frankie at the risk of rubbing salt in the wound, this whole situation could have been avoided almost painlessly in the beginning when you first got the axle. Back in my younger mechanic days One of the first things I was taught when replacing parts was to pull it out of the box and closely compare to the old part even taking measurements if needed. When I shortcutted or just forgot this step it would inevitably almost always bite me in the backside. Believe me when I say you did not want to face your boss because in a repair shop which of course is a business time is money and I had just thrown the shops money and in some cases the part out the window for no good reason. In later years when I ran a shop I would run into this same problem with the revolving door of young trainee mechanics over the years and even some more experienced guys who could never get it through there thick heads. This is not to bash you but to help you and any one else who is dabbling in mechanics with classic cars because even though time in most of our cases is not money for us the aggravation part is much worse.