Ken, There were 3 different core size radiators listed for the '47 - '55 Chevy AD trucks. 2", 2 1/2", & 3" cores. I believe any of them should interchange in a COE, unless it was in a Dubl.- Duty step van. The step van radiator was different. Any Comm. '47 - '55 4 speed trans. should work, if out of a non COE you'll have to swap the long Conv. shifter lever for the short COE shifter lever bracket.
