I love how people love to look at a picture and state they know for sure that they are mobile home axles. I hate to tell you but I have a tri-axle trailer with three axles that look identical to those that are not MH. I know this because the trailer was factory built, I have the certificate of origin. Around here there are a lot of job site rental office trailers that also use these axles, are they one time use too? :laughing: One thing I was told to look at was the leaf springs, one single heavy duty spring usually is how MH axles are set up as multiple leafs are more expensive. I'd have to look again but I thought I saw multiple leafs in the OP.