I see, so you have 8-16 ags on it now??
I just changed them to the truck tires I use in the winter with chains a couple weeks ago. For snow (and other plowing jobs) I like flexible truck tires with chains. The tires were on the front of my dad's pick-up and one became egged so he bought two new front tires and the old ones became the winter shoes for that tractor, they still have a pretty good amount of tread left.