[quote=GLyford]I did something slightly different on mine, there is a backing plate behind the wheel bushing and a "stop" plate where the pivot bushing rides, I tied them together with a 1/4" gusset. I also bored out a 1" round spindle 5/8 to go over the mower spindle, then welded that on. I didn't have the milling machine then. I have busted other things on the axle (tie rods, basically the entire steering setup, center pivot plates) but haven't killed these yet.

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The thing about doing it your way is that most trailer tires are a little bigger than tractor fronts, and you can set the wheel centers an inch or two higher relative to the axle beam than original to compensate for the difference in wheel rolling diameter. My tractor has a slight tilt to it..Had I welded a little gusset on each axle they may have survived. yours looks exactly what Mine used to look like..... Less the gusset

I know a lot about a lot of things BUT I still have a lot to learn.
Life is what you make of it. So, why not make a working machine to make it easier.