67-69 vs 70-72 Dodge Darts

This was posted earlier and I know my DUSTER was a bit longer than the Bcuda- defintely:

'the book says:

a 68 dart is 111" wheel base and 196 inch overall length . The dart grew an inch to 197 inches overall after 70

a 68 barracuda is 108" wheelbase and 188.4 inch overall length'