Tom, that Jeep I drove over had the 4.0 6 and it has given me nothing but miles and miles of trouble free driving and got 23 MPG@70MPH. It was a '98 with 160,000 miles when I gave it to my daughter. I don't know what kind of 2WD trans bolts up but there has to be one. The rear ends generally come with 3.73's and are easy to find with posi and disc brakes. It would be a good choice!