If/when my VX's engine is finished, I plan on replacing the drivetrain completely with anything but Isuzu parts. Will find something reliable and longer lasting than Isuzu mechanicals. Don't need 400hp, just something reliable. If I were you or anyone else i'd call a drivetrain specialist shop and have them put together a reliable "heart." There's a thread on here where someone from Maine did this and kept everything except the TOD of course. As long as I have 4WD, I personally don't need the TOD. I believe he even got a V8 istalled and even kept the A/C intact. Correct me if i'm wrong.