I just had my Toyo AT III's rotated on my '20 3500 DRW. I have 30K on them. The inside dual had not yet been rotated to the front (they are now). Those tires are down to 3/32nds The other 4 are 5/32nds. The truck is also loaded most all the time so there is that. The tires perform very well, both in the Winter, great on ice, decent in the dirt and gravel. The wear is not great. As they wear the siping continues which is nice to see, but dam they wear fast. I believe they have a 50k warranty. According to Discount tire, they all have to be worn down to get warranty coverage. I am going to finish wearing these out, which wont take long and try the Falcon Wildpeaks on the DRW.