337, Heavy Duty Trucks - Service Trucks / Utility Trucks / Mechanic Trucks, Cummins ISL9/PX9, Automatic, Don't let the tax man get you! Truck is ready to work! Brand new Peterbilt 337 EXTENDED CAB truck with attached Adkins 162-94-CB 13'6" Heavy Duty Crane/Mechanics body. Automatic transmission, locking diffs, the awesome and roomy 10 inch cab extension, the best of everything. Call now at 704-599-2253 for complete truck and body specs. Again, this truck is ready to go. get it bought before the end of the year! Better pictures are coming, but call now!, 330 Horse Power, Spring Suspension, All Aluminum Wheels, 190 Wheel Base, 11R22.5, Single Axle, Ratio,