Anyone ever find a lead on the heater/AC box door actuator diaphragms? I did find the part numbers such as 3143613 and a few others.

This is the one I am looking for, I think they take a 1/8 inch vac tube.

 

They are pretty common. All GM A body should be the same. Buicks and Olds 70-72 cars I have worked on should be the same. It should be an easy find if you look,

 

See if the part number crosses over to Chevrolet or Pontiac. If it's the same as full-size Chevrolet you're all set.

I know 63-64 all GM B bodies use the same heater box and ducting but not sure on 61-2. I can't remember ever seeing a 61-2 Chevrolet with factory in-dash airconditioning. Most were all underdash units.

 

I found mine for a '63 Olds on E-Bay.
Someone is re-producing them with a six inch wire.
You simply cut the wire to the length you need.
Check with Cadillac suppliers like McVey's. They may have them.

 

Thanks all, That would work, it is for the divert valve, if it don't divert then no A/C. I have checked epray, no luck, I will check for other brands, thank you all for the help.

 

For my 62 wagon I bought from OPGinc, part # CE05660 and I ordered 4 units. This was during covid shut down and it took them almost a year to fill (one right away and 3 pieces11 months later). They work correctly for the doors. The unit I'm having trouble with is the vacuum actuated on/off valve behind the inner fender for the freon.

 

Thank you for the feed back Oldskeeper, I think I found it, and it was not easy. The company is called Old Air Products. But you enter your car info and it only lists a clamp for A/C parts available. If you enter "Actuator" in the search line it lists a few, but none with the wire. Probably for the air doors, but I needed the one with the wire.
So I went to a Buick site and found a picture of what looked like one that might work so I called and he said he has no part number cross reference for Olds and could not help me.
So I took his part number VD235901 and compared it to the Old Air part numbers, deleted the VD and put a dash after the 23 and voila! 23-5901 is the part number.
I have one on order, It should fit, but we shall see.
If anyone needs HVAC actuators they have a large selection.
Thanks again for the help and I hope this information will help others.

 

That's the one I got too. Just cut the wire off to the length you need.
I think it fits most GM cars.

 

Those are the ones I purchassed as well from OPG. They work great and were easy to install.
Steve