I bought the heater kit from you guys and can't figure out how to attach the defroster hoses to the heater housing. The heater came with 1 7/8" plugs in the housing but no "male" adapters to attach the hoses to. How do you attach the defroster hoses to it? It's the 68-991 Heater & defroster assembly. Thanks for your help John '59 Chevy 3104
On the aftermarket heater setup the hoses just stick in the holes where the rubber plugs are. There are no adapters to secure the hoses.