1. the seller changed out the rear end to 1 ton specs
2. the seller lied about the trucks size
A 3600 is a 3/4 ton designation, no ifs, ands or buts period. If it was as you say, presented to you as a 1 ton you may have recourse for a return and refund of your money. For your stated purpose you might just want to consider a 4100-4400 series. Good luck with your project. Sounds like another one is going back to work. Can't beat that.
