DESCRIPTION 1981 Big Wheels Spinner Truck (GP11961),New Leader L2020 box, Outback GPS guidance, 6 cylinder Detroit engine, 60 foot swath, front tires 48 X 25.00 X 20 (25% tread), rear tires 66 X 43.00 X 25 (25% tread), shows 78,921 miles. Serial Number: 1GDM8C1V6BV563514 Notes: The windshield on this truck is cracked (shown in pictures).