Original owner. This truck was never upgraded with any chips or mods. Well cared for but with the well documented problems with the 6. 0 diesel. Just gone through an extensive re-working of the whole motor to bulletproof it. Partial list of upgrades include: ARP Head bolts. Head Gaskets. Garret Turbo Charger. Ford replacement injectors. New oil injector. Oil cooler kit. Water pump. Belt tensioner. New batteries. New shocks and more. Also has a roll-a-lock on the bed. Ice cold A/C. Original transmission working well. All receipts are in the glove box. It now is a strong running engine. I can not justify keeping it for as little miles that I put on it. Know the 6. 0 motor that you are buying before you get it. Any questions you can call me at 561-441-5432.