Hey is anybody running the BFG KM2's on a 7.3. If so what kind of wear are you getting out of them? Thanks smiliepeelout

Hey I'm new to this. I 'm trying to decide what truck to buy. I found a really nice 2003 6.0 PSD with about 90,000 miles on it. but I've heard a lot of bad stories about the 6.0 and then some good. I'm torn, 6.0, 7.3, or a duramax. I know I'm going to get chastised over that last one.thanks...