JAsher45, You'll like the power that the Cummins has. It's a tall engine compared to the Detroits. Are you doing a body lift? I wanted to do that conversion too, but chose to install the turbo 6.5 and 4L80E trans into my M998. I figured that I could buy most of the parts which has been basically true. I finally gave up on finding a surplus A2 main body wire harness and ordered a new one for big bucks. The turbo controller was a problem, as the unit is different on the military Turbo models as it isen't vacuum operated and it is not listed in the TM's. I did find Predator Motorsports that has a manually adjustible controller. This might make your Turbo trucks perk up, as the Military unit is probably not adjustible. Then you could turn up the injector pump 1/6 of a turn and really haul ass. Above 1/6 of a turn of the fuel screw and you may start melting pistons. I have finally gathered up the 8 groove serpentine pulleys, all good used and support plate, so now I only have to make the spacer between the harmonic balancer and the crankshaft pulley, to finish off the engine. The last major piece that I know nothing about is the M1114 Radiator. It does have a different part number than the previous Radiators. Do you know if it is infact different, with larger tanks or core, or is it just the latest version of the "HMMWV" radiator? George