We had a discussion on them years back here on MLU, and I was always under the impression that the rims were just 5/4. But the part number was in fact for trucks from 1978 onwards (IIRC). Now if that has something to do with offset, or clearance, I have no idea....it could just be that those were the rims available at the time the trailers were being built. But for a trailer. which does not have calipers, I suspect there should be no problem installing most common sizes of 16" rims.
If you have (as most grown men in this hobby will/should have) a Dodge diesel 3/4 ton in the driveway, try one of the tires from that onto your trailer and see how the fit is. That should give you an idea of the fit. Heck, even a lowly Ford or Chev could work. Of course, owners of the latter will try and jealously insult the Dodge owners.
My money says you could also use some of those cheap 8 bolt rims that you buy for trailers.
Last edited by rob love; 09-02-20 at 23:34.
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