I found a couple of those buses converted to motorhomes a few years back near my brother's in Oregon. Neither ran and one of them had a different motor.
If I remember correctly one of them was late 40's and the other maybe early 60's? I believe the price was free provided you remove both of them from the guy's property.
I don't know if they are still there or not and I didn't notice that they had automatic transmissions. Wasn't really interested and didn't look very hard.
GMC started offering the Hydra-Matic about 1952 in delivery trucks (PM series) and '53 in pickups. By '54 it was available in 350 series (2-ton) trucks and larger.
Have I mentioned that I own a '54 Hydra-Matic 1-ton GMC?
