Wish me luck, i bought a truck w/85k on it..yesterday 2006, Z71' 4wd, 5.3 engine, 3.73 rear end.. It's a one owner (i know who the previous owner is, my daughter works for his son and he's 79 yrs old) the truck was garaged, impeccably maintained.. My mechanic says it's as good as new and not to have any worries.. My friends rolled their eyes at me implying i was stupid for buying one with that high of mileage. I don't know what to think other than it's spotlessly clean, tight and rattle free, is equipped exactly the way I'd have spec'd it myself, and the check I wrote was 13K, not 35k.. What say you about high mileage gm's? Would you be concerned with 80k+ miles? Hell, 80% of the 2007-2010 Z71's I looked at had 60k or more miles..and they still wanted at least 25K..!