AARTA
Member
I am at a loss of how to identify the difference of 1969 and the 1970-72 base plates. I am thinking that there are two different bases for each of the production types. The 440 being taller should be different than the 383. I would think it is different for both styles, but unable to find any documentation of what to look for. Thanks for looking and hopefully I can find out the differences. I am working on a 1970 Coronet factory 4 speed car, bucket seats and factory AC. It is a factory black car with black interior. Only one I have seen, but probably others are out there.