I have been looking to get a new truck, i need an ext cab. I found 03 ext cab duramax/allison in NH today. Its an LS package loaded power everything, no leather. It has 120k miles on it though. I know most people i have talked to say thats not much on a diesel. But at $17,900 its in my price range. Called them today, the guy says the truck is immaculate a 9-10 out of 10. Would you be concerned about buying it with that many miles on it, and is that a decent price?