You may want to check your lug pattern on your trailer. The original axle was 5 lug on 5" center or 5on5 when you ask for one at the trailer supply store. This is a 6 lug rim in the auction.
At fellow member UWE's advice I put 4 of these rims on my 1972 27' International in 2006, they have performed very well, I have taken them on multiple cross country trips.
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