I have 8-19.5's on my 62 one ton. I get mine used at a tire place down the road here that does a lot of business with RV'ers. Apparently that is a common size for many RV's. I get take offs with 70% tread remaining for 35 bux mounted and balanced. Speaking of which...I need to get a couple more soon. Got a couple that are getting some bad weather checking.