[Brian894X4]

I don't know that you have many options in that size. I know BF goodrich has a Mud Terrain T/A KM in that size.

Have you considered the 285/75R-16. It's a hair shorter, about an inch wider.

There are a lot more options in that size. I personally like the Goodyear MTRs, which I've been running for 6 years, but a more economical choice and still a very good tire would be the BF Goodrich, All Terrain T/A. And yes, they do work well in most off road conditions. The MTRs are very expensive and don't wear all that great.

Everything is a compromise and for an expedition vehicle, you're probably going to see lots of time on pavement, hardpacked roads and gravel roads, so a road friendly tire, as opposed to an extreme off road tire is something I would recommend and the BFG is a good all around road/off road tire.

Also, using a tire in a common size for whatever area you plan to travel in is a good idea in case you need to buy a replacement. 285 is a common size here in the states and from what I've read, the entire western hemisphere. Not sure about the other side of the world.