I had a 97 Dodge with the Cummins in it that would flat out run. I bought it in 97 with 17,000 miles on it. Black 3500 extended cab 4x4 with a straight pipe. I sent Dad south of Des Moines to get a 5488 with duals with my gooseneck trailer. He came back with a big smile bragging he only shifted out of overdrive 3 times between Des Moines and Sioux City. I'm on my second Duramax and they're nice but that 5.9 mechanical pump will always be my top runner, just wish the rest of the pickup could have held up.