I ran 225 85R 16's on my 49 3100 for a while and they did OK. I bought 'em used in the case tubeless radials wouldn't work on my rims. They did.
When I replaced them with new I went with 215 85R 16's and I like them much better. Steering is easier and the tires don't rub except when I try to take a corner too fast, otherwise IMHO 215's are a much better choice for a 1/2 ton AD with manual steering.
Dave
