Good day George,
I really appreciate that. I couldn't find any parts number on my axle, I looked it all over. Could it be behind the backing plate that is pressed on with the studs? I might have some luck with these guys on ebay, their company is rpm-motorsports. They seem to deal in older car parts and have many later model axles. But the NOS is definitely the way to go if I can get my hands on one. So have you ever heard of an axle being machined down to accept a race or a sleeve where the bearing can run? I don't see why it couldn't be done. Here are some picture of my truck and the axle.
Close up axle whole drive axle New Rims or Old Rims? Engine problems