My 69 Case 580 TLB needs new tires. The old mismatched set of junk on it when I bought it are done. I had a nice used set of Goodyear truck tires and they mounted up nice on the wheels but when I bolted them up, they are just a bit too wide. They rub against the spindle/steering arms. Cant find a strong wheel spacer that fits the 5 1/4 bolt spacing so it looks like I will have to find some new tires. Where do I look for a strong (10-12 ply rated ) 16 inch tire that will be less than 10 inches wide? Any experience or recommendations?