searched around for an answer but came up empty. As I am rebuilding engine, I have been able to identify that the engine and transmission are stamped with partial VIN that,matches the dash plate. I thought I have read that there was a number stamped or tagged on the differential and carburetor. I do not have either of these tags nut thought I remember that they can be ordered from Marti. Is there anything stamped n the rear end to confirm? if so, where do I look?