1971 GTX Heater Box w/AC - Question about Interchangeability.

[crahill39]

Are these heater boxes standard across all B-Bodies in the year range of 71 - 74?

Craig

 

[moparmarks]

No there are some differences among the years. There is an early and late 71 but both will interchange. 73/4 has different cables. There are some more things that I can't think of right now.

 

['73bird]

No there are some differences among the years. There is an early and late 71 but both will interchange. 73/4 has different cables. There are some more things that I can't think of right now.

So a 72 box wont work in a 73/74?