I'm buying an F-450. It's got 10 lug wheels. Both of my trailers have 8 lug wheels. One has electric drum brakes, the other has vacumn over hydraulic (soon to be electric over hydraulic) disc brakes. Is it feasable to change the 8 lug trailers to 10 lug? Or should I just carry two spares and shut up?

What weight rating are the Dexter axles?

Only 10 bolt brake drum shown. Suck it up and carry two spares.