For 16 inch rims --
The Nitto TerraGrapplers, at 265/75-16, 31.5" dia., are as big as I can get with out lifting.
A 3/4" point of cladding was cut from in front of the front tires.
This was the free shipping package from Discount Tires Direct at $114 each. I have 18" rims, but the cost was $167 and the 285's are too wide for my stock rims. (In my conservative view) The only snag was that I missed the load rating in the order. It should have been D, for 8 ply not E for 10 ply (Rated). A little less zip and no increase in road noise.
Roy