Investigating at Circle G, 204 has 8.3 by 24 tires, 254,284 has 9.5x24. Different rims are listed for each model, 204 says 5 inch center hole, 254 says 4 3/4 center hole. Interesting, the 354 is listed as 11.2x24 with a 5 inch center hole. All the same diameter, just wider. Gonna have to find...