Well I haven't got a transmission for the Trooper yet. I have a 1982 Chevy LUV diesel pickup, so I do know that the gas transmission will not work on the diesel. I'm very educated on the Isuzu diesel in the pickups and Troopers. Like I said, I am in need of a turbo diesel engine and transmission for a diesel Trooper I bought of Ebay. I'm not worried about a transmission because I have located one in PA and one in MD. But the engine is what is rare and hard to get. If you know where I could possibly buy one, please let me know. Thanks.