ac/heater box interchange

[ike61]

is the ac/heater box in a 1973 dart the same as a 1976 dart?

 

[Knuckshaft]

I would think yes. My old mans demons is about the same as my 73 and old 75 dusters. I would think they would be swapable.

 

[cudamark]

Maybe as an assembly you could get it to work but the evaporator and fan motor are different so I would say no.....who's going to be the tie breaker?