Blower Motor - A-Body Heater Only

niceolddart said
Will a working one from a 74 A Body do or is the fan attachment different on the one you're looking for. Mine is a slip-on type with small spring clamp.

I believe that they switched to a 3 stud mount in 1973 as opposed to the older 4 stud mount. They mount differently to the firewall as well.