It would be my GUESS that the 270 was used over the 235,(in the Chevy G-506's),as Paul stated earlier. There's a Studebaker US-6 Tank Wrecker,about 15 miles from where I live. The owner's son,tells me it was used in the Korean Conflict,even though it looks like WW-2 Vintage. Difference is,it's powered by a 4-53 General Motors Diesel,Not the Hercules,like most WW-2 Studebakers/Diamond-T's were equipped with. White built a 200 horsepower 6-cylinder gasser for the war effort,as well. They were mainly used in half-tracked vehicles.