Looking for vacuum door lock actuators for 2 door Cutlass /442. See photo.
GM part # 8730955 and 8730956 for nos
Not sure if 68 is the same but I assume it is.
4 door front doors carry a different part number, I assume the rod is different.
Mine do not seem to hold vac for much more than a couple of minutes.
Im building the doors and it would be great to find these before I put the glass in.
I would consider good used if proven they hold vac.
Thank you

 

i have four door parts

 

Tim,
Heve you tried to use those in your car? They do not need to "hold" vacuum. They only recieve vacuum when you press the switch. So, as long as they have enough "strength" to move the lock mechanism, you should be fine.