Under Dash AC Box Wanted

[t89blazer]

I am looking for the AC box that mounts to the firewall under the dash in a 89 K5 Blazer. Some of the vaccum operated actuators in mine are broke so I would like to replace the entire unit if I can. Any Help would be greatly appreciated. Let me know how much.

Thanks,
Tim

 

[94yukon]

I think one from a 84 should work I will look a the one im parting out it had a new heater core in it if i recall $100 ? shipping is up to you 56011