I am thinking that you have a larger than a 1 ton. 1 tons have the same fenders and hood as a 1/2 or a 3/4 ton. A 1 1/2 ton would have the 20 inch tires, rear axel ratio of 6:17 To 1,A 134 in wheelbase, PTO and dump bed and a 216 engine. A 2 ton would have a 235 splash oiling engine. How about posting your VIN # and one of us will Bust it. Best of luck with your New Truck. Jerry