[notanlines]

While I don't have an actual answer to your question, I will add this. I don't believe that your trailer left the Keystone plant with that spare tire. I believe that either the previous owner, if there was one, or the original dealer took the original spare and substituted the spare you now have with one from Tractor Supply or Northern Tools. For anyone reasonably handy the replacement of the lug bolts is not a problem. However, how you locate a wheel that fits your hub is another question. Probably one answered by your dealer.