David, thanks. I think I'll need to give Dexter or LL a call to find out what the right replacement is. Even if this WAS delivered with the wrong axle, it was 13 years ago to a different owner, so I'm pretty sure the repair is on me. But who knows, perhaps that IS the reason for the low ride height. It's been this way ever since I've owned it, though its only since getting new tires that I've realized how serious a problem it is.