Both of them should have the eight wire plug on the drivers side also as they are both electronic gov trans. They may be the same as I dont remember if there was any running changes in them from 1997 to 2001 but basically they are the same trans. Not sure what you mean about the large box one ? Maybe you mean a 45RFE which was behind the Hemi's. If anyone knows about the 97 V/B working in the 2001 John Kunkel most likely will. You are sure both are 46RE tranny's right ? Ron