They are from an old 26' camper/travel trailer, 6lug so I would have to believe that they are 3500 lbs axles but I'm not exactly sure there are no tags on them.
I was going to use them on a trailer to pull my Toyota 4runner but I went a different route.
Always missed, Never forgotten
08' 4door JK 5.7 hemi, auto and atlas
2012 F350 6.7 PSD CC shortbox