When you say "axle tag", do you mean the actual axle or the tag attached to the outside of the camper?
At the Fall Rally last year, I crawled under my 2005 (actually manufactured in May of 2004) to check the stamp on the axle. That is where I was told it could be found. I did not find anything stamped but found painted on the axle '5200'. I was told this was the axle rating. On the manufacture's tag under the bedroom slide on the outside of the camper, it states that the axle rating is "5080" which is the 5200# axles. Seeing that yours is a 2003, you may also find it painted on the axle.
I was surprised that they were 5200# not 6000#. Others were surprised to see that I had the 8 bolt wheels.
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