38.5" axle is threaded and solid. Hubs are there. What you see is what you get. Not 100% sure what is what or what is good and what is not. Wheel hubs are JJ&A. Judging by the threads the rest of the hubs are also don't know about the shaft. Carrier is a single row. It's been YEARS since it's been ran and I've been through a pile of parts over the years and can't keep track of what is what. 375 shipped for all of it.