Has any one had any experence with the 3.9 liter 4BT cummins diesel. Its a 4 cyl turbo. They are found mostly in frito lay trucks and stuff. They have the same bolt pattern as a dodge cummins. Im wanting to find one for a replacement in my CJ-7. I know they are heavy but I want one reguardless. If some one knows where one is for cheap or any ideas, post them on here.