[eaglesan13]

First picture shows a 71 core support (in front) alongside a 70 core support (rear). The next two pictures show the differences between the EVAP canisters. Only cars sold new in California were equipped with the EVAP system in 1970. The second picture is a 1970 EVAP canister and the third picture is the 71 and later canister. The last picture shows a date code on the side of the core support. FYI, I'm not sure if the date code is for the entire core support or just the side piece with the date code on it.