In Reply to: Model A hoopy tractor posted by Galen Ishman on October 05, 1999 at 11:44:53:
The A engine has an oil return tube on the right side of the engine.It runs from the valve chamber cover forward and down to the front of the crankcase.The B engine has no tube and a place for mounting a fuel pump on the right side.The trans. is probably a four speed out of an AA truck.