Air distribution box, how to fix it? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chevydog66 · 07-29-2006, 05:13 PM

I'm trying to get the A/C working on my 72 GMC and I noticed that this air distribution box is in need of repair. The door is broke inside of it, where the hinge and door connect. Any ideas on how to fix it? Or where to get a new one. I am considering trying to cut the box in 1/2 at the plastic seam in order to either glue or put 2 pieces of thin metal on each side. I'm not sure how to get the box apart or how to put it back together.

PanelDeland · 07-29-2006, 05:57 PM

There is a way to repair these.I don't know how since I never needed to and so did not read the thread thoroughly.Hopefully someone else will answer with the info or a thread to read.
N-E-Who here's a ttt

*rage'nrat638* · 07-29-2006, 06:35 PM

heres one tread
http://67-72chevytrucks.com/vboard/s...light=diverter

Bob Moore · 07-29-2006, 06:48 PM

I found one that a PO had fixed with a thin sheet of aluminum(about 1/2 inch less in heigth than the flapper is tall and about 4 inches long). It was folded in half and fitted around the shaft tightly and attached with about 4 small machine screws and nuts.

It was a very solid fix. I was going to use it until I found a better one.

Good luck - Bob

jhow66 · 07-30-2006, 02:19 AM

Fixed mine by just taking it out and leaving the shaft to work switch. Now I get AC or hot air out of all vents. Works just fine.

**Bob B.** · 07-30-2006, 04:54 AM

I believe those are still available new, but they are pricey.

tphsmith · 07-30-2006, 05:42 AM

LMC use to carry this box, possably still do. and Im thinking Chevy Duty sells parts also for a/c units

chevydog66 · 07-30-2006, 11:20 AM

So, will I need to open the box up? I mean cut it in 1/2 at the plastic seam? I would like to try to fix it without cutting the box open. I will make an attempt at it today. Thanks!!

Bob Moore · 07-30-2006, 11:22 AM

The fix I described did not require the box be opened.

LDM 71 · 07-30-2006, 12:12 PM

I fixed this on my truck using 2-ton epoxy. Used the stick I mixed epoxy with to reach inside box so I was able to do it without taking it apart. Works good so far. www.cs-m.com has them for $95 if you need to replace it.

chevydog66 · 07-30-2006, 09:00 PM

I was able to fix it today by using a hot glue gun. I laid it on about 1/8" thick on both sides. Thanks for the help!!

07-29-2006, 05:13 PM	#1
chevydog66 GM ONLY BABY!!! Join Date: Oct 2003 Location: Fort Wayne, IN. Posts: 1,998	Air distribution box, how to fix it? I'm trying to get the A/C working on my 72 GMC and I noticed that this air distribution box is in need of repair. The door is broke inside of it, where the hinge and door connect. Any ideas on how to fix it? Or where to get a new one. I am considering trying to cut the box in 1/2 at the plastic seam in order to either glue or put 2 pieces of thin metal on each side. I'm not sure how to get the box apart or how to put it back together. Attached Images __________________ 2 wrongs don't make a right, but 3 lefts do. 66 Chevelle Malibu 406ci, 573hp, 10.99@121mph 96 Chevy Silverado Z71 72 GMC 1500 Super Custom LS 6.0/4L65 on airride http://www.cardomain.com/ride/707879...mc-c-k-pick-up Last edited by chevydog66; 07-29-2006 at 05:18 PM.

07-29-2006, 05:57 PM	#2
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,992	Re: Air distribution box, how to fix it? There is a way to repair these.I don't know how since I never needed to and so did not read the thread thoroughly.Hopefully someone else will answer with the info or a thread to read. N-E-Who here's a ttt __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

07-29-2006, 06:35 PM	#3
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	Re: Air distribution box, how to fix it? heres one tread http://67-72chevytrucks.com/vboard/s...light=diverter

07-29-2006, 06:48 PM	#4
Bob Moore Registered User Join Date: Feb 2004 Location: Tacoma WA Posts: 1,365	Re: Air distribution box, how to fix it? I found one that a PO had fixed with a thin sheet of aluminum(about 1/2 inch less in heigth than the flapper is tall and about 4 inches long). It was folded in half and fitted around the shaft tightly and attached with about 4 small machine screws and nuts. It was a very solid fix. I was going to use it until I found a better one. Good luck - Bob __________________ 67 C-20 LWB, tilt, speed alert, vac, 454, T400 67 C-10 SWB, factory air with more to follow

07-30-2006, 02:19 AM	#5
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	Re: Air distribution box, how to fix it? Fixed mine by just taking it out and leaving the shaft to work switch. Now I get AC or hot air out of all vents. Works just fine. __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer

07-30-2006, 04:54 AM	#6
Bob B. Senior Member Join Date: Aug 2005 Location: Los Angeles Posts: 1,363	Re: Air distribution box, how to fix it? I believe those are still available new, but they are pricey. __________________ 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.

07-30-2006, 05:42 AM	#7
tphsmith still buypickupparts Join Date: Sep 2003 Location: charlotte Posts: 637	Re: Air distribution box, how to fix it? LMC use to carry this box, possably still do. and Im thinking Chevy Duty sells parts also for a/c units __________________ Its Gonna be a Great Day, I woke up this Morning. 72 SWB Fleetside freshly painted. putting a 94 LT1 with 700R4 tranny lowered 4 in the front 6 in the back 81 chevy half ton 350 89 Silverado 4x4 going ta church truck

07-30-2006, 11:20 AM	#8
chevydog66 GM ONLY BABY!!! Join Date: Oct 2003 Location: Fort Wayne, IN. Posts: 1,998	Re: Air distribution box, how to fix it? So, will I need to open the box up? I mean cut it in 1/2 at the plastic seam? I would like to try to fix it without cutting the box open. I will make an attempt at it today. Thanks!! __________________ 2 wrongs don't make a right, but 3 lefts do. 66 Chevelle Malibu 406ci, 573hp, 10.99@121mph 96 Chevy Silverado Z71 72 GMC 1500 Super Custom LS 6.0/4L65 on airride http://www.cardomain.com/ride/707879...mc-c-k-pick-up

07-30-2006, 11:22 AM	#9
Bob Moore Registered User Join Date: Feb 2004 Location: Tacoma WA Posts: 1,365	Re: Air distribution box, how to fix it? The fix I described did not require the box be opened. __________________ 67 C-20 LWB, tilt, speed alert, vac, 454, T400 67 C-10 SWB, factory air with more to follow

07-30-2006, 12:12 PM	#10
LDM 71 Registered User Join Date: Jun 2006 Location: TEXAS Posts: 6	Re: Air distribution box, how to fix it? I fixed this on my truck using 2-ton epoxy. Used the stick I mixed epoxy with to reach inside box so I was able to do it without taking it apart. Works good so far. www.cs-m.com has them for $95 if you need to replace it.

07-30-2006, 09:00 PM	#11
chevydog66 GM ONLY BABY!!! Join Date: Oct 2003 Location: Fort Wayne, IN. Posts: 1,998	Re: Air distribution box, how to fix it? I was able to fix it today by using a hot glue gun. I laid it on about 1/8" thick on both sides. Thanks for the help!! __________________ 2 wrongs don't make a right, but 3 lefts do. 66 Chevelle Malibu 406ci, 573hp, 10.99@121mph 96 Chevy Silverado Z71 72 GMC 1500 Super Custom LS 6.0/4L65 on airride http://www.cardomain.com/ride/707879...mc-c-k-pick-up



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