What is this opening/lever for? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

emil77 · 10-24-2010, 04:32 PM

Hi guys,

I noticed today on both drivers and passengers side, there is this door handle type lever. If I pull on it, a "door" for lack of a better word, opens. What in the world is this?

Andy4639 · 10-24-2010, 04:50 PM

It lets fresh air in the cab while driving.

cam.man67 · 10-24-2010, 05:35 PM

it's essentially a passive-air vent setup. At 0mph, there's not much effect. But at 90 (yes, been there, done that

) there's all kinds of air pushing through there into the cab. Works like my heater used to before the heater switch got replaced.

eightbanger · 10-24-2010, 05:47 PM

I use mine when I want my cab filled with leaf litter.

ChevysandSchwinns · 10-24-2010, 07:24 PM

Quote:

Originally Posted by eightbanger

I use mine when I want my cab filled with leaf litter.

I second that and or old mouse nests.

292farmer · 10-24-2010, 08:47 PM

i use mine to cool off my flux capacitor when i start to approach 80mph, they tend to heat up when used too often

but really their like a cheap mans a/c my dads mack b60 has those as the cab will reach 100+ when towing or hauling

swamp rat · 10-25-2010, 12:50 AM

Poor mans AC..

**passthebuck** · 10-25-2010, 05:17 AM

Slept in my truck a few summers ago. Couldnt figure out where all the mosquitos were comming from. Ends up it's also a mosquito entrance...

emil77 · 10-25-2010, 08:45 AM

Thanks guys!

ChevLoRay · 10-25-2010, 11:40 AM

...is our age showing?

I gotta remember that there are young people on this site. I never had a vehicle with air conditioning until '79. For that matter, neither did my house.
My school bus doesn't have it and therefore I drive my '96 GMC w/o using the AC unless the bride is riding.

But, those vents and vent windows were what made it possible to cruise through western Texas in the summer of '69 in my '64 Bonneville ragtop w/o AC. Yeah, it was hot....but, it was a DRY heat.....lots and lots of dry heat.

10-24-2010, 04:32 PM	#1
emil77 Registered User Join Date: Oct 2010 Location: Tujunga, CA Posts: 262	What is this opening/lever for? Hi guys, I noticed today on both drivers and passengers side, there is this door handle type lever. If I pull on it, a "door" for lack of a better word, opens. What in the world is this? __________________ Thanks, Emil 1972 Chevy C20 Last edited by emil77; 10-24-2010 at 04:33 PM.

10-24-2010, 04:50 PM	#2
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: What is this opening/lever for? It lets fresh air in the cab while driving. __________________ 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.

10-24-2010, 05:35 PM	#3
cam.man67 Registered User Join Date: Jun 2010 Location: Jefferson, MD Posts: 2,397	Re: What is this opening/lever for? it's essentially a passive-air vent setup. At 0mph, there's not much effect. But at 90 (yes, been there, done that ) there's all kinds of air pushing through there into the cab. Works like my heater used to before the heater switch got replaced. __________________ '68 Dodge Dart 270, 225, 904, 2.76--"Lucy" 1996 Gmc 1500 Z71, 350, 4l60e, 3.73s 1995 Jeep Wrangler Rio Grande 2.5, AX5, 4.10s 1989 Toyota Pickup 22re, auto, 3.73

10-24-2010, 05:47 PM	#4
eightbanger 454 MAKES IT ROAR Join Date: Jan 2008 Location: Essex, U.K Posts: 2,701	Re: What is this opening/lever for? I use mine when I want my cab filled with leaf litter. __________________ Nigel. An American living in a British body. 1971 Chevy Cheyenne 10 454 "In a time of universal deceit, telling the truth becomes a revolutionary act." - George Orwell "When injustice becomes law, resistance becomes duty" - Thomas Jefferson No more pain. 03.12.60 -- 12.28.10 http://www.youtube.com/Eightbanger

10-24-2010, 08:47 PM	#6
292farmer Registered User Join Date: Nov 2009 Location: stoddard nh Posts: 693	Re: What is this opening/lever for? i use mine to cool off my flux capacitor when i start to approach 80mph, they tend to heat up when used too often but really their like a cheap mans a/c my dads mack b60 has those as the cab will reach 100+ when towing or hauling __________________ 1972 gmc c25 292/sm465 dana 60 w/5.13s 1973 vw super beetle 1600cc/4spd(baja bug) 1974 chevy c60 351v6/np-540+2 speed eaton rear 2005 chevy cobalt 2.2l Last edited by 292farmer; 10-24-2010 at 08:48 PM.

10-25-2010, 12:50 AM	#7
swamp rat Registered User Join Date: Oct 2007 Location: Spanaway Posts: 8,451	Re: What is this opening/lever for? Poor mans AC.. __________________ Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's

10-25-2010, 05:17 AM	#8
passthebuck Sisyphus was my mentor! Join Date: Sep 2002 Location: Carleton Place, Ontario CANADA Posts: 984	Re: What is this opening/lever for? Slept in my truck a few summers ago. Couldnt figure out where all the mosquitos were comming from. Ends up it's also a mosquito entrance... __________________ passthebuck #5642 -TWO 1967 GMC 910's. One with L6/3-on-the tree and the other with 355 w/435hp & a 700r4. -a 2013 Honda Civic as my "sensible" car

10-25-2010, 08:45 AM	#9
emil77 Registered User Join Date: Oct 2010 Location: Tujunga, CA Posts: 262	Re: What is this opening/lever for? Thanks guys! __________________ Thanks, Emil 1972 Chevy C20

10-25-2010, 11:40 AM	#10
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	Re: What is this opening/lever for? ...is our age showing? I gotta remember that there are young people on this site. I never had a vehicle with air conditioning until '79. For that matter, neither did my house. My school bus doesn't have it and therefore I drive my '96 GMC w/o using the AC unless the bride is riding. But, those vents and vent windows were what made it possible to cruise through western Texas in the summer of '69 in my '64 Bonneville ragtop w/o AC. Yeah, it was hot....but, it was a DRY heat.....lots and lots of dry heat. __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was.

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