I picked up the car today from the transmission shop. They tore down the transmission and found no problems. It's back in the car and I just drove it home for 20 miles on the highway. I was not comfortable with the RPM over 50MPH. There are indeed 4 gears, with first only being used if I go down to low, or if I stomp the gas pedal.

From the seat of my pants, the RPM is too high at any sort of cruising speed. The temp was spot on, the car accelerates smoothly, idles very well and does everything I expect it to except the lack of comfortable cruising at 55MPH.

I will keep working on it and driving it until something goes boom and then go from there. I will work on getting a tach as well. M114 engine.