Not sure if my terminology is correct, but I stripped the axle nut threads off the outer rear axle stub shaft. From what I'm finding, you can't replace just that part. You have to replace the whole axle assembly. Is this true? I looked on Ebay for used axles but didn't find any. I may also need a front outer also. With all the internals in working order obviously. Original 2018 axles if that makes a difference.