I've been thinking this over for awhile & now on the fence about selling the Chevy/GMC heater module set I redid years back. I keep leaning towards using the heat-A/C module so if I decide that I need to be cool it's easy to convert back. It has everything but the center vent connector that goes between the vents & behind the dash duct. I'm thinking it maybe with my extra parts. Even got dash stuff for '78-'80 & a panel for '81, a few control panels with one having the off position. I'll have to get pics of everything & retest it all again. Just testing the waters at this point.