I just had a blow out and now need to get a new tire. I have 35" mud terrains, but they are the old style, not the KM. The tread depth is 13/32, so they still have 2/3's of the tread. There is a tire store where I can still get an old style MT or should I get the new KM. Also I think I will get two of what ever I get so I dont have different size tires on one axle, even though the difference in size may be miniscule. Then I will use my other old tire as a spare becasue mine now doesnt match. I'm leaning towards just getting the KM's. Or can I get away with just replacing the one bad tire? what you all think?