Pre Duramax chevy
I just bought a 2000 chevy diesel. The PMD was out and the truck was stalling out. Make sure to buy the extention you can get off ebay to remote mount the PMD. Otherwise it will get hot and go out agaiin. Just do a google search and you will find a lot of information about this problem with the chevy.
You will get good mileage with the truck but it is not for hauling huge loads. I use it to haul a skid sprayer or my open mowing trailer and it does great for that.