Heater A/C box any differences between 68 69 and 70 ??

[70 sublime]

I have started to look locally for a heater A/C box for the project 70 Charger I picked up
My car has all the dash control panel parts

Is there any differences between the three years and if there is will the 70 control panel still hook up and work as it should ?

Another question would be what years and cars have the same box ?

[70gtx440dana]

Heater box is basically the same......70 heater core is different than 68-69. Otherwise, pretty sure the other parts are the same.