72 GMC A/C Help
 

I'm putting factory air parts back into a truck that a previous owner stripped out. I bought the center air vent, gasket, and plastic Y duct that goes behind the dash however I am unclear as to how the pieces attach to each other. If someone could enlighten me as to how they attach or if there is a specific piece of hardware I need it would be greatly appreciated. I've searched parts catalogs from multiple companies but no one seems to sell parts for or even understand how they connect. Golden State, Brothers, & LMC all need to implement tech support.

Re: 72 GMC A/C Help
 

Hopefully this will help a bit.

Re: 72 GMC A/C Help
 

How do parts #9 & #10 connect to part #8? I just bought all three parts from LMC, but no hardware is available for attachment, no threads for screws??????

Re: 72 GMC A/C Help
 

If I remember correctly, 9 and 10 are one piece with studs that reach through the back of 8. 1/4"-20 nuts on the back of 8 then hold the whole contraption together.

Since it is a big, giant waste of time and hose, plug the left side of 8 and the other end of where that hose comes from and only push air to one side of the center vent.

Re: 72 GMC A/C Help
 

Correct.............studs that go through from the outer piece through the dash, through the inner piece and 2 nuts inside.

Re: 72 GMC A/C Help
 

10 didn't come with any studs, just a couple of slots for studs...maybe. The slots are not threaded though. There are 2 holes in the back of eight that line up with the slots in 10.

Re: 72 GMC A/C Help
 

Here are some photos of my A/C parts and you can see there are slots to put studs in...maybe. But no threads or a way to secure them into the vent.

http://i1033.photobucket.com/albums/...p/IMG_0459.jpg

http://i1033.photobucket.com/albums/...p/IMG_0454.jpg

http://i1033.photobucket.com/albums/...p/IMG_0456.jpg

http://i1033.photobucket.com/albums/...p/IMG_0457.jpg

http://i1033.photobucket.com/albums/...p/IMG_0451.jpg

http://i1033.photobucket.com/albums/...p/IMG_0441.jpg

http://i1033.photobucket.com/albums/...p/IMG_0436.jpg

Re: 72 GMC A/C Help
 

you need to unscrew the studs from from your old #10 and into new #10

Re: 72 GMC A/C Help
 

Don't have an old #10, previous owner stripped all of the A/C parts from the truck.

Re: 72 GMC A/C Help
 

Then you need to find some studs or cut you some threaded rod about 1.5 long. That will solve your problem. I just got through doing the AC system on my ols suburban.....It all went well intill I decided to try to get all the vent hoses in....What a CLUSTER!

Re: 72 GMC A/C Help
 

The center vent will be much easier if the driver's side of the vent is blocked of. The driver side with the radio in place is a bear to put in. They make a
plug set specifically for this. With everything already installed in the dash, this is going to be a little harder than usual, but take your time and you can do it.