I have been seriously considering buying some of the Mastercraft Courser AT/2 tires. The 31/10.50's are a bit more than the P265/75/R15 but you are getting a 6 ply tire over a 4. Same tread pattern, and wear life expectancy. I have also been told that 4 ply tires ride better as well. Whatever that means, not like it matters in a 20 year old truck...
I have had great experience with the TSL LTB tires. They offer a 9.50 width, which is great for small vics like ours. ProComp makes AWESOME tires, they are m ore money, but they last forever it seems. The last set of MT's I had were ProComp and they literally had what seemed like the tread from when they were new to the day I sold the vehicle 3.5 years later.
I am no expert, so someone chime in...what is the difference in a 4 ply 265 tire, over a 6 ply 31/10.50 tire?