Air door part question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hdff · 01-09-2016, 08:29 AM

I am replacing the fresh air door under the cowl. There is a plastic piece with a hole in it that the pin on the door goes in on the back side. The plastic piece is loose and moves around. I have looked in the LMC and truck shop catalogs and haven't seen where I can get a new one. Does anyone know if this is available anywhere?

Tdrcreyn4 · 01-09-2016, 08:48 AM

Not available. You'll have to fab one. There is a thread on here that shows several ideas.
The plastic piece is secured with a plastic nut on the inside of the cab behind the glovebox. Have you checked to see if the nut is missing or loose? May be as easy as that.

hdff · 01-09-2016, 02:01 PM

No I didn look behind it to see but the heater box and glove box are out so it will be easy to check . Thanks

davepl · 01-09-2016, 02:13 PM

The fresh air door on the cowl is available, and includes the cast-in (molded-in) axle part that goes into one of the receivers. If I'm reading this right you need the white plastic piece itself?

If it's jus a wear issue, can you sleeve the door axle somehow to make it bigger so it's a better fit? Just a random thought...

hdff · 01-09-2016, 03:45 PM

I bought a new door and noticed the plastic piece was sloppy when I went to put it in. I will check the back nut when I get home from work and see if it is loose. Researching this today I also found out that I am missing a spring in there also that is not available 😳

hdff · 01-09-2016, 07:02 PM

Quote:

Originally Posted by Tdrcreyn4

Not available. You'll have to fab one. There is a thread on here that shows several ideas.
The plastic piece is secured with a plastic nut on the inside of the cab behind the glovebox. Have you checked to see if the nut is missing or loose? May be as easy as that.

That was it, the nut was loose behind the glove box, carefully tightened it up cause I was parinoid I would break the plastic, and now it is tight!

Thanks for the info, I learn something new everyday here!

BrianG · 01-10-2016, 01:03 AM

Can someone explain where this is located? Is it an ac only thing maybe? I have a non ac truck and the only fresh air flap doors that I know of are in the heater box then there are one on each side that open and close with the pull/push rod in the kick panel. If there is some other door/flap I want to be sure to check it out before finishing up the restore. Also how does it open and close?

hdff · 01-10-2016, 01:45 AM

Quote:

Originally Posted by BrianG

Can someone explain where this is located? Is it an ac only thing maybe? I have a non ac truck and the only fresh air flap doors that I know of are in the heater box then there are one on each side that open and close with the pull/push rod in the kick panel. If there is some other door/flap I want to be sure to check it out before finishing up the restore. Also how does it open and close?

I think these are only on ac cab trucks the door is under the cowl and the vacuum actuator is on the fire wall near the blower fan. You can see the vacuum actuator in this pic

Andy4639 · 01-10-2016, 04:47 AM

Here is the plastic part.

BrianG · 01-10-2016, 01:15 PM

Quote:

Originally Posted by hdff

I think these are only on ac cab trucks the door is under the cowl and the vacuum actuator is on the fire wall near the blower fan. You can see the vacuum actuator in this pic

Thanks for clearing that up for me.

01-09-2016, 08:29 AM	#1
hdff Registered User Join Date: Apr 2007 Location: pasadena,TEXAS Posts: 880	Air door part question I am replacing the fresh air door under the cowl. There is a plastic piece with a hole in it that the pin on the door goes in on the back side. The plastic piece is loose and moves around. I have looked in the LMC and truck shop catalogs and haven't seen where I can get a new one. Does anyone know if this is available anywhere? __________________ 1971 Cheyenne SWB 402BB, 700R4, 3.73 posi, PS, PB, A/C, Tilt, Tach "Wanda" Don't argue with idiots, People watching may not be able to tell the difference... There's someone in my head........But it's not me...... cheap tricks thread great info here!! http://67-72chevytrucks.com/vboard/s...d.php?t=489394

01-09-2016, 08:48 AM	#2
Tdrcreyn4 Registered User Join Date: Aug 2013 Location: Atlanta, GA Posts: 702	Re: Air door part question Not available. You'll have to fab one. There is a thread on here that shows several ideas. The plastic piece is secured with a plastic nut on the inside of the cab behind the glovebox. Have you checked to see if the nut is missing or loose? May be as easy as that. __________________ 1968 C10 292/3 spd - sold 1969 K10 350/3 spd/205 - sold 1971 K5 350/4 spd/ 205 - sold 1970 K20 350/350/205 - sold 1969 K20 396/400/205 - work in process

01-09-2016, 02:01 PM	#3
hdff Registered User Join Date: Apr 2007 Location: pasadena,TEXAS Posts: 880	Re: Air door part question No I didn look behind it to see but the heater box and glove box are out so it will be easy to check . Thanks __________________ 1971 Cheyenne SWB 402BB, 700R4, 3.73 posi, PS, PB, A/C, Tilt, Tach "Wanda" Don't argue with idiots, People watching may not be able to tell the difference... There's someone in my head........But it's not me...... cheap tricks thread great info here!! http://67-72chevytrucks.com/vboard/s...d.php?t=489394

01-09-2016, 02:13 PM	#4
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,332	Re: Air door part question The fresh air door on the cowl is available, and includes the cast-in (molded-in) axle part that goes into one of the receivers. If I'm reading this right you need the white plastic piece itself? If it's jus a wear issue, can you sleeve the door axle somehow to make it bigger so it's a better fit? Just a random thought... __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible

01-09-2016, 03:45 PM	#5
hdff Registered User Join Date: Apr 2007 Location: pasadena,TEXAS Posts: 880	Re: Air door part question I bought a new door and noticed the plastic piece was sloppy when I went to put it in. I will check the back nut when I get home from work and see if it is loose. Researching this today I also found out that I am missing a spring in there also that is not available 😳 __________________ 1971 Cheyenne SWB 402BB, 700R4, 3.73 posi, PS, PB, A/C, Tilt, Tach "Wanda" Don't argue with idiots, People watching may not be able to tell the difference... There's someone in my head........But it's not me...... cheap tricks thread great info here!! http://67-72chevytrucks.com/vboard/s...d.php?t=489394

01-10-2016, 01:03 AM	#7
BrianG Registered User Join Date: May 2011 Location: Oakley, Michigan Posts: 735	Re: Air door part question Can someone explain where this is located? Is it an ac only thing maybe? I have a non ac truck and the only fresh air flap doors that I know of are in the heater box then there are one on each side that open and close with the pull/push rod in the kick panel. If there is some other door/flap I want to be sure to check it out before finishing up the restore. Also how does it open and close?

01-10-2016, 04:47 AM	#9
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Air door part question Here is the plastic part. Attached Images __________________ 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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