70 a/c heater box?????????????

[moparmendy]

is a 70 a/c heater box the same as a 68 and 69 a/c heater box??
any help would be appreciated..
thanks,
garymendy@yahoo.com

[squeakfinder]

Maybee these guys have the answer. They show a 67 to 70 b body a/c box for sale, I think I'd call for sure.




          http://www.texasacres.com/parts/heat.html

[moparstuart]

Maybee these guys have the answer. They show a 67 to 70 b body a/c box for sale, I think I'd call for sure.




          http://www.texasacres.com/parts/heat.html

the box may be the same but some of the components are for sure different
  the values are 70 specific

[GreenMachine]

I'm pretty sure the heater core is different.