I bought a 92 250 with a auto thats been wreaked (totaled) from what i can tell has been well taken care of cummins filters& clean oil. it has 149000 miles. It also has a small tdr badge under the hood. my questions are how do i tell if the pump has been modified. can i buy a gas 250 and swap everything over. are the frames the same? will the motor mount brakets bolt up? intercooler/radiator? thanks for any input. the first gen is really growing on me.