hahaha ; ) etrailer sales etc wouldn't know, best to find a smaller manufacturer and talk to the guys in their fab shop, or their shop foreman
Mine originally had a drop axle, after clearing the U-bolts it went straight up a few inches and then turned out into the spindle, leaving the U-bolts too close to the pavement in case of a flat @ 70mph, so I had the straight axle built at a local trailer place for $150. The only thing original to the Uhaul axle frame I started with is the leaf springs and the angle it's supported on/attached to.
I hadn't even looked under mine for at least 5 or 6 years, until I took those photos. It looks like at least one of my leafs might need some attention.
How was that etrailer place for springs?