Detroit 60 series, with about 150,000 on overhaul, no blow by, doesn’t use oil, run hot or anything, being used daily. Ac and heat work fine, pulls and runs great. Has a super 10 transmission, locker, jake brake(not currently working), good rubber all around. Has remanufactured title due to minor wreck. Call or text 318-348-3O87 with questions.