set 3 of terra grapplers. First set was a D load, back ones wore off in 15k. 2nd set was E load and have currently about 45k, still have better than 50%. My 3rd set is on my winter wheels (smaller 17") with about 10k, still like new.
We have a work truck 06 2500HD chevy that has the Dura Grapplers with 105K, they need replaced before the snow flies but if it was going into dry season we'd leave em on.
They are highway tread, quiet, kinda rough.