Oh ya didn't ask the guy who had it what was hooked up to it.Wasn't the Allision in the trucks that had the 8.1?
Ya, the 2500HD 8.1's had the Ally. I had an '01. Loved that truck. Got identical mileage to my old man's 6.0L gasser, and was better at absolutely everything. It's too bad they quit putting them in trucks.