Aisin trans file into 68RFE ECM?

Hey guys,
have a cab and chassis customer, who lost an ECM. He bought a new one from a salvage yard. Only potential issue I see, is the stock file from the replacement ECM is from a 68RFE equipped truck. If I perform a full flash of a cab & Chassis file into it for an Aisin trans, will it function correctly?

Thanks in advance!