dash A/C center vent install help.... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

LuckyScott · 01-12-2020, 11:41 PM

Got a new chrome center dash A/C vent for my 1970 truck. But didn't have the studs to install. So I got the studs friday, and can't figure it out. The studs are threaded, but the dash A/C vent is not. I know it goes into the plastic tube in the dash, but how do I put the studs in? Do I have to tap the holes or is there another piece I'm missing.

Help.....

**dmjlambert** · 01-13-2020, 09:37 AM

My center dash vent is threaded to fit the studs. I didn't get an aftermarket one, I bought a used one off the parts board here on the forum. Here is a picture from member Beelzeburb:

from this other thread

Andy4639 · 01-13-2020, 11:04 AM

The studs should go all the way through the black plastic tube part and then the nuts.

Outer chrome piece with studs then dash then gasket then black plastic then nuts to hold it all together.

NorCalC20LWB · 01-13-2020, 01:55 PM

It's been a few years, but I think I had the same issue as you. Aftermarket chrome center vent without threaded holes for the studs. They did need to be tapped, although I may have just tapped them with the bolts. Definitely safest bet would be to use a real tap.

**SIXTY9** · 01-13-2020, 02:28 PM

Use a 1/4 X 20 tap, and do it with the tap handle. I used a little bit of oil on the tap.

LuckyScott · 01-13-2020, 07:36 PM

Thank you.

Andy4639 · 01-13-2020, 08:37 PM

Well I've never seen one not threaded and how I missed it I don't know but oh well you got the right info.

01-12-2020, 11:41 PM	#1
LuckyScott Registered User Join Date: Jun 2010 Location: Anaheim, Calif. Posts: 361	dash A/C center vent install help.... Got a new chrome center dash A/C vent for my 1970 truck. But didn't have the studs to install. So I got the studs friday, and can't figure it out. The studs are threaded, but the dash A/C vent is not. I know it goes into the plastic tube in the dash, but how do I put the studs in? Do I have to tap the holes or is there another piece I'm missing. Help.....

01-13-2020, 09:37 AM	#2
dmjlambert Senior Member Join Date: Apr 2016 Location: Cypress, TX Posts: 3,810	Re: dash A/C center vent install help.... My center dash vent is threaded to fit the studs. I didn't get an aftermarket one, I bought a used one off the parts board here on the forum. Here is a picture from member Beelzeburb: from this other thread

01-13-2020, 11:04 AM	#3
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: dash A/C center vent install help.... The studs should go all the way through the black plastic tube part and then the nuts. Outer chrome piece with studs then dash then gasket then black plastic then nuts to hold it all together. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

01-13-2020, 01:55 PM	#4
NorCalC20LWB Registered User Join Date: Mar 2015 Location: Bigfork, MT Posts: 466	Re: dash A/C center vent install help.... It's been a few years, but I think I had the same issue as you. Aftermarket chrome center vent without threaded holes for the studs. They did need to be tapped, although I may have just tapped them with the bolts. Definitely safest bet would be to use a real tap.

01-13-2020, 02:28 PM	#5
SIXTY9 Senior Member Join Date: Jan 2013 Location: North Charleston SC Posts: 504	Re: dash A/C center vent install help.... Use a 1/4 X 20 tap, and do it with the tap handle. I used a little bit of oil on the tap.

01-13-2020, 07:36 PM	#6
LuckyScott Registered User Join Date: Jun 2010 Location: Anaheim, Calif. Posts: 361	Re: dash A/C center vent install help.... Thank you.

01-13-2020, 08:37 PM	#7
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: dash A/C center vent install help.... Well I've never seen one not threaded and how I missed it I don't know but oh well you got the right info. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.



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