One of the wheels was rusted out and I've had no luck finding a replacement wheel.
I measured the hub and it fits in the wheel opening of a 5.5" x 5 lug wheel that comes from a Scout/Jeep(CJ type)/Suzuki Samurai. I found a pair of wheels off a Samurai with tires at a Junk yard for $15.00. The Samurai wheels work good due to the large amount of backspacing which mounted facing out rather than in like normal then gave the tire the needed clearance from the spreader box. I used a sawzall to cut the spokes of the EZ Flow hub then I welded the Samurai wheel to the hub. The Samurai wheel had a hole that allowed access to the grease zerk too. I noticed the other wheel has some rust too, so it may get fixed too.
I started spreading lime last evening and it works great.
The three pics show a stock wheel setup and the the repaired one and the grease zerk access. The welding was hard and not perrty due to only having a 110V welder, but it will hold.