Hi Don, I looked on rock auto and it looks like the tensioner and idler are available. I would assume the fan spins opposite of an earlier LA too. If you can check the heads you have from it and take a pic of the side that faces the front, I would appreciate it. If they have just the one hole, then the magic is all in the brackets. I am guessing here but with the parts listed on rockauto, it makes me think all Dakota V8s had the serpentine system. I also saw these had an electric fuel pump, so I am wondering about the front cover too.

Loooks like the 89 model year had it too.