I have a 1998 Peterbilt 379 EXHD for sale.  It has 312,728 Actual Miles on it w/ 25K on the inframe w/ a new head.  Here is a few more specs on it:

10 Aluminum Wheels, Tires 70%, 475 HP Cat, 13 Spd, 3.55 Gears, Sleeper, 4 Air Bag Suspension, 286 inch wheel base, dual chrome smokers, dual chokers.

For more information contact the numbers provided,  First one is business phone mon-fri 8am 5pm.  Second is my cell phone.  Ask for Curt.