I know the difference between the body styles but I seen one 26 years ago and a friend seen one 5 years ago. They both were SS's with a 307 V8 2bbl. with a 3 speed manual transmission. I have another friend who races 2 1967 SS's that have the body style like the 1966's and he thinks I'm just telling him a tall fishing story. I've been looking for this information every since the I first seen one. Any information about these rare finds would be greatly appreciated. Thank you.