Non air to factory air ?????????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

71HUGGER396 · 02-20-2006, 06:45 PM

I want to put the factory air out of my parts truck into my daily driver. I've read the FAQ's section and I know about the three difference in the cabs. The inside dash holes, the fire wall holes, I have figured out, but what about the third hole for the flapper{ I think}, any info on that one??? That's the hole I haven't read too much about. Please help me,,,, Thanks

6872xtc · 02-21-2006, 12:10 AM

Are you referring to the flapper (air door) inside the cowl vent? It's below the windsheid in the wiper area. That works with the vacuum can on the passenger footwell vent to make recirculated air or fresh depending on the position. Most cabs that I have seen have punch marks from the factory where the holes need to be. I hope I understood what you were talking about.

kaycee · 02-21-2006, 12:18 AM

If that is the one your talking about my firewall had center punch marks on it.I just drilled them out to the size I needed and my old parts fit right in

71HUGGER396 · 02-21-2006, 10:43 PM

Yes ,that's it, thanks.

02-20-2006, 06:45 PM	#1
71HUGGER396 Confirmed Truckaholic Join Date: Oct 2000 Location: Sarver,PA 16055 Posts: 732	Non air to factory air ?????????? I want to put the factory air out of my parts truck into my daily driver. I've read the FAQ's section and I know about the three difference in the cabs. The inside dash holes, the fire wall holes, I have figured out, but what about the third hole for the flapper{ I think}, any info on that one??? That's the hole I haven't read too much about. Please help me,,,, Thanks __________________ 1968 50th STEP SIDE SHORTY, 350/350, a/c, ps, p,b Daily Driver, 1970 Cst short fleet, all black, 350/350, 1970 2wd Blazer, 2wd, 6 cyl. 3 spd, original, now a 454, 350turbo, 3.73 posi, on the road 1971 2wd fleet shorty, 454, 700r4, 3.73 posi, SOLD to 67OLDSTYLE72 "My rig's a little old but that don't mean she's slow" - SAWYER BROWN's Six Days On The Road SEMPER FI "I use to be a lean mean fighting machine, but now I'm a huffin, puffin, over stuffin love muffin"

02-21-2006, 12:10 AM	#2
6872xtc Registered User Join Date: Jan 2006 Location: Grand Jct.,CO Posts: 59	Re: Non air to factory air ?????????? Are you referring to the flapper (air door) inside the cowl vent? It's below the windsheid in the wiper area. That works with the vacuum can on the passenger footwell vent to make recirculated air or fresh depending on the position. Most cabs that I have seen have punch marks from the factory where the holes need to be. I hope I understood what you were talking about.

02-21-2006, 12:18 AM	#3
kaycee Registered User Join Date: Jan 2000 Location: Wyoming USA Posts: 2,453	Re: Non air to factory air ?????????? If that is the one your talking about my firewall had center punch marks on it.I just drilled them out to the size I needed and my old parts fit right in __________________ 2001 Silverado K-1500 2005 FXDWG stage3 69 CHEVY Short/Step 327/4L60 373 posi 63 IMPALA 327/4L60

02-21-2006, 10:43 PM	#4
71HUGGER396 Confirmed Truckaholic Join Date: Oct 2000 Location: Sarver,PA 16055 Posts: 732	Re: Non air to factory air ?????????? Yes ,that's it, thanks. __________________ 1968 50th STEP SIDE SHORTY, 350/350, a/c, ps, p,b Daily Driver, 1970 Cst short fleet, all black, 350/350, 1970 2wd Blazer, 2wd, 6 cyl. 3 spd, original, now a 454, 350turbo, 3.73 posi, on the road 1971 2wd fleet shorty, 454, 700r4, 3.73 posi, SOLD to 67OLDSTYLE72 "My rig's a little old but that don't mean she's slow" - SAWYER BROWN's Six Days On The Road SEMPER FI "I use to be a lean mean fighting machine, but now I'm a huffin, puffin, over stuffin love muffin"



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