Hey guys, since I bought my 85 GP the air would only come out of the floor and defrost vents. I vacuum tested the entire HVAC controller system. All the actuators are perfect. Hoses are good. I chased the vac leak down to the two vacuum controller or vacuum switches in the HVAC panel. Turns out you can buy the larger main 9 port controller from Rock auto for $50, which I did tonight. However, our control panels have a second, 2 port smaller vac controller for the heater valve under the hood. I am at a loss trying to find this part. I actually removed and disassembled both switches and could technically replace the rubber o-ring in each if I could find it. Any help on the smaller 2 port vacuum controller/switch? If I cannot find a fix for it, I may have to just eliminate it. Stinks I had to spend $50 tonight for the 9 port swtich to just replace a worn rubber gasket with a groove pattern in it... What is everyone doing to "rebuild" these HVAC control panels?