Hello everyone. I just purchased a 1950ish Buda shop mule. I am in the middle of a mild restoration. (I just want it to drive and stop. It doesn't need to shine.) I am having trouble finding new axle seals. It's a odd seal/nut combination. Everyone's buddy Phil, has been a great help with 4b-153 engine parts and gave me this part # for my seal. IH-58 539-HX. This part number has not given me any luck. I've been told it's an old # and good luck. Can anyone cross this #, and is anyone familiar with this nut/ seal combo? The only numbers on the rear end is this # in the casting. C12 190 . Thanks everyone.