Source for rear AC fittings?

[82SquareBurb]

Hello,

I am doing a R134a conversion/retrofit on an 82 Suburban. I am replacing the compressor with a Sanden 7176, (relocating to the passenger side with a new drive setup) all new hoses, O-rings, new parallel flow condenser, accumulator/dryer, and orifice tube. Since I am relocating the compressor and need new lines anyway, I am having trouble finding a source for the special "Tee" fittings that feed back to the rear AC. I attached a photo showing them. I looked on coldhose.com, and saw no option to add in any kind of splitter or junction. I have yet to find any fittings that will work. I may just need to ditch the rear AC if I can't find the lines/fittings. Has anyone been successful restoring the rear AC?
Thanks

 

[saltdog]

I'm still running my original, but have been thinking about doing the same thing. Did you try just calling coldhose? It sure looks like they should be able to fabricate something that will work. The tee connection is not complicated.

 

[legopnuematic]

You can use an appropriate Tee like this:

You must be registered for see images attach

Then when you make up new hoses with hose ends like this:

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[TotalyHucked]

That lower one can be found on RockAuto. I bought it by accident for my C10 years ago. Gave it to a buddy for his 'burb

More Information for GM GENUINE 1533072

 

[82SquareBurb]

Nice! Thank you - All great info.

 

[82SquareBurb]

You can use an appropriate Tee like this:

You must be registered for see images attach

Then when you make up new hoses with hose ends like this:

You must be registered for see images attach

Very cool, I think this will work for the larger suction/low side hose, then I can build the hose from the compressor to connect to the male fitting. Seems this system used no expansion valve, or I have yet to find it.

 

[75gmck25]

AFAIK, '74 was about the last year they used an expansion valve system on the squarebody trucks.

My '75 has an orifice tube/holder for a fixed orifice that is built in to the lower hard pipe on the evaporator. The original system used a GM white fixed orifice, but based on recommendations I changed it to a Ford Blue orifice that is supposed to work better with R134a.

The Ford Blue Orifice is a very cheap part (used to be only a couple dollars) and it was stocked at most parts stores. However, I think that current parts stores might give me a dumb look if I asked them for one, so you might have to find an A/C supplier. https://www.fleetpride.com/parts/ai...NOCYcPHZmitEzJVtb3Fz3Uh-aQ8dQzaxoCS-kQAvD_BwE

 

[82SquareBurb]

AFAIK, '74 was about the last year they used an expansion valve system on the squarebody trucks.

My '75 has an orifice tube/holder for a fixed orifice that is built in to the lower hard pipe on the evaporator. The original system used a GM white fixed orifice, but based on recommendations I changed it to a Ford Blue orifice that is supposed to work better with R134a.

The Ford Blue Orifice is a very cheap part (used to be only a couple dollars) and it was stocked at most parts stores. However, I think that current parts stores might give me a dumb look if I asked them for one, so you might have to find an A/C supplier. https://www.fleetpride.com/parts/ai...NOCYcPHZmitEzJVtb3Fz3Uh-aQ8dQzaxoCS-kQAvD_BwE

Thanks, I found them on clearance for a package of 10, so if anyone else needs one let me know lol

More Information for FAMOUS BRAND T621

 

[Finkaire]

Try Fourseasons for parts

 

[Broken85]

Very cool, I think this will work for the larger suction/low side hose, then I can build the hose from the compressor to connect to the male fitting. Seems this system used no expansion valve, or I have yet to find it.

There is no expansion valve. They use an orifis tube.

https://www.amazon.com/dp/B000C9C8EK/

 

[Finkaire]

Could be wrong, orifice tube in front and an expansion valve in the rear

 

[82SquareBurb]

Could be wrong, orifice tube in front and an expansion valve in the rear

You are correct, found it a diagram:

You must be registered for see images attach

 

[gmbellew]

Could be wrong, orifice tube in front and an expansion valve in the rear

that's correct