Well here's the deal. Two years ago I made the switch to LT285/75R17 tires. I went with the Toyo AT's and only got 29,500 miles out of the 50,000 miles they are rated for. The tires were rotated every 5,000 miles. All miles were on the road miles except for the ocasional gravel road. I am looking at replacing these but have found out that there are only a handfull of tires in this size. If I had know this I would of never switched to the bigger tire. Anyway it comes down to either replacing the Toyo's with Toyo's or going with the Nitto Terra Grapplers or Dura Grapplers. Does anyone have any good advice on these tires. I tow a heavy 5'er in the summer and snowmobiles in the winter otherwise I am unloaded. Please help.