I did not take pictures. I'll try to explain what I did. I cut two 2"x2" blocks of 1" steel. Drilled a 1" hole in the center and milled a 1-1/2 groove in the bottom at an angle to match the original spindle. It was about 1/4" on the inside out to almost nothing on the outside.
I cut the factory spindles about 3/4" below the axle and welded them from the bottom to the blocks I made then welded the 1-1/2" spindle in the machined groove.
I took some 10"x6" trailer wheels and narrowed them to 4" and mounted tri-rib tires.
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I may just have too much time on my hands.