Thanks for the information.  I also have a 1952 88 that is a gas.  The engine in the diesel is a 3.8L Waukesha and the gas is also a 3.8L Waukesha.  Will the diesel engine fit into the gas tractor? I'm hoping to make one good tractor.  I was hoping both the gas and diesel have the same bolt pattern for the frame and bell housing.