2001 Peterbilt 379 EXHD Flat Top. Truck has 1.7 million total miles. Engine rebuilt 1.1 million No Paperwork.6NZ Cat 475 HP. Engine runs good very little Blow By. Engine oil pan gasket is leaking right rear.10 speed tranny is getting tired. You have to come to a complete stop to switch back down to low or it grinds.Air Leaf suspension , DS404 with 3.55s. Owner retired.No Rust. California - Arizona.