Question: Upgrading C3 Heater/Ac blower motor/fan

[PRIrish]

I'm planning to upgrade my 1976 coupe's heater/AC blower motor/fan with a C4 unit. Can anyone tell me if all C4(1984-1996) units will work and if so, which one is best.

 

[6880 Mike]

I think all are the same. All you need from the C4 is the squirrel cage.