1stproject,
I was told the engine was a 350 (year unknown), and it is still running the original 3 speed trans with the OD. I believe that the rear end is the 3.90, not the 4.11 I was told was in it. It cruises very comfortably at 65 - 70 mph down the road, now that I got the OD working. I was very fortunate that it was a relay problem and not a major mechanical one.
