Center AC Vent Issue - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**pringle85** · 01-13-2026, 06:49 PM

Life got in the way for a few years, but I am now back to reassembling my 70 GMC. I am working on putting interior parts back in the cab before setting it back on the frame. I've ran into an issue with my center AC vent. It was a factory AC truck, and I'm quite sure the vent is OEM. The issue is that my chrome vent is two pieces instead of just one. I'm guessing that I am missing some kind of clips that held the two pieces together, but don't have anything that looks like it would work. Can someone either tell or show me what I am missing? And more importantly are these available separately? Thanks for any help.

**LockDoc** · 01-14-2026, 06:01 PM

Quote:

Originally Posted by pringle85

Life got in the way for a few years, but I am now back to reassembling my 70 GMC. I am working on putting interior parts back in the cab before setting it back on the frame. I've ran into an issue with my center AC vent. It was a factory AC truck, and I'm quite sure the vent is OEM. The issue is that my chrome vent is two pieces instead of just one. I'm guessing that I am missing some kind of clips that held the two pieces together, but don't have anything that looks like it would work. Can someone either tell or show me what I am missing? And more importantly are these available separately? Thanks for any help.

I will run out and take a look at one of mine. I think the plastic frame is just staked over the round pivots on each end.

EDIT: I went out and looked and it looks like there is a small piece of black plastic over the top of the pivots, and then the plastic is heat swedged over the top of those in four places.

**pringle85** · 01-15-2026, 12:27 PM

Thanks for the picture and explanation. Guess I'll look for a replacement.

truckster · 01-15-2026, 01:39 PM

If you have a friend with a 3D printer, they should be able to make a couple of small parts for you in no time.

**Rust_never_sleeps** · 01-15-2026, 02:47 PM

Quote:

Originally Posted by pringle85

Thanks for the picture and explanation. Guess I'll look for a replacement.

You could just drill a hole in the middle of a plastic rectangle. Cut it in half and you'll have both

**Bob B.** · 01-15-2026, 11:15 PM

Decent reproductions sell for around $30 if you can't fix your OEM one.

**pringle85** · 01-16-2026, 01:40 PM

Thanks to all who responded. I am in the process of buying a used one from 72 tigger.

01-13-2026, 06:49 PM	#1
pringle85 New Member Join Date: Aug 2020 Location: Lewiston, MI Posts: 16	Center AC Vent Issue Life got in the way for a few years, but I am now back to reassembling my 70 GMC. I am working on putting interior parts back in the cab before setting it back on the frame. I've ran into an issue with my center AC vent. It was a factory AC truck, and I'm quite sure the vent is OEM. The issue is that my chrome vent is two pieces instead of just one. I'm guessing that I am missing some kind of clips that held the two pieces together, but don't have anything that looks like it would work. Can someone either tell or show me what I am missing? And more importantly are these available separately? Thanks for any help. Attached Images

01-15-2026, 12:27 PM	#3
pringle85 New Member Join Date: Aug 2020 Location: Lewiston, MI Posts: 16	Re: Center AC Vent Issue Thanks for the picture and explanation. Guess I'll look for a replacement.

01-15-2026, 01:39 PM	#4
truckster Registered User Join Date: Jan 2001 Location: Orem, Utah Posts: 8,265	Re: Center AC Vent Issue If you have a friend with a 3D printer, they should be able to make a couple of small parts for you in no time. __________________ I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson 1972 K/5 Blazer CST 4WD 1963 Corvair Monza Spyder Turbo convertible 1995 Camaro Z/28

01-15-2026, 11:15 PM	#6
Bob B. Senior Member Join Date: Aug 2005 Location: Los Angeles Posts: 1,457	Re: Center AC Vent Issue Decent reproductions sell for around $30 if you can't fix your OEM one. __________________ 1967 GMC CM-2500 Camper Cruiser, 351E V-6, NP 435 4 speed, Dana 60, and factory A/C. 2012 GMC K-3500 WT regular cab, 6.0L Vortec, 6L90.

01-16-2026, 01:40 PM	#7
pringle85 New Member Join Date: Aug 2020 Location: Lewiston, MI Posts: 16	Re: Center AC Vent Issue Thanks to all who responded. I am in the process of buying a used one from 72 tigger.



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