1997 Peterbilt 379. Has a 3406E CAT motor. 475 horsepower. Engine was overhauled about 900,000 miles but no paperwork. Motor has NO BLOW BY at all. Super 10 transmission, shifts nice. Truck drives nice and tight. 3.90 rear end ratio. Last summer we put in a new radiator, water pump, oil pump, oil cooler. We used that truck as a spare in SE New Mexico hauling condensate. This truck has been very dependable...