I have been thinking about trying this for a while. Has anybody here put a duramax in the place of the 6.5 in a older model 4x4 chevy truck. I have a 95 dually that is getting a little worn and cant think of buying another new truck right now. Thought about buying a duramax/allison out of a wreck 4x4 and trying to fit it in the old truck. Just need a little imput from someone that has done it or knows someone that has done it. Im just not sure if I want the hassel with the electronics. I need to make sure I get everything from the doner truck that i need on the first trip to the salvage yard.