![]() |
Register or Log In To remove these advertisements. |
|
|
![]() |
|
Thread Tools | Display Modes |
|
![]() |
#1 |
Senior Member
Join Date: Jul 2006
Location: Midlothian TX
Posts: 315
|
Need help installing factory A/C in a non-factory A/C 67-72 Truck
There has to be someone else out there that has had the same idea as me, installing factory air in a non factory air 67-72 Chevy or GMC truck. With that being said, I would appreciate any tips that you can give me, that would make this installation easier and more successful. I am especially worried about drilling holes in my dash for the vents. What is the best way to do this? Also, what is the best way to cut out the firewall, and what is required to install the flapper that closes off or lets in outside air? What is the best way to wire in the factory air unit into the existing wiring harness, or is it better to use the wiring harness from the factory air truck? I'm sure I'll have more questions, and there are probably questions that I don't even know to ask at this point as I just have all the components, and have not begun the installation yet. I just want to know what I'm in for before I do it.
|
![]() |
![]() |
![]() |
#2 |
Registered User
Join Date: Jul 2006
Location: Colorado
Posts: 32
|
![]()
I don't know if you've already seen these options or not, but there are complete AC kits available for non-AC trucks. The ones I've seen, heard, and read about are:
www.vintageair.com www.oldair.com www.classicparts.com formerly known as www.chevyduty.com From the description of these kits, it reads as though they give you everything you'll need to put AC into your rig. They're around a $1000 when its all said and done though. The only thing that sorta has me hesitant is when they say "designed to fit below/above (I don't remember which) your factory heater controls".... something along those lines. I would prefer to have a system that is as close to factory as possible, as far as the controls, the doors, the vents..... everything. |
![]() |
![]() |
![]() |
#3 |
Registered User
Join Date: Jun 2003
Location: spokane wa
Posts: 2,189
|
Re: Need help installing factory A/C in a non-factory A/C 67-72 Truck
I moved ya off the parts board, so you would get a better feedback..
__________________
Support The Board |
![]() |
![]() |
![]() |
#4 |
Senior Member
Join Date: Jul 2006
Location: Midlothian TX
Posts: 315
|
Re: Need help installing factory A/C in a non-factory A/C 67-72 Truck
Hey, thanks for putting me in the right place super moderator
![]() |
![]() |
![]() |
![]() |
#5 |
'71 chevy s.bed/s.side
![]() Join Date: Mar 2005
Location: Chesapeake, VA
Posts: 1,571
|
Re: Need help installing factory A/C in a non-factory A/C 67-72 Truck
PM sent
__________________
STILL PLAYS WITH CARS...AND TRUCKS!! Parents! Be good to your kids...they get to choose your nursing home! 250 I-6 with a 3 speed Saginaw and Borg Warner Overdrive...She's got overdrive! |
![]() |
![]() |
![]() |
#6 |
Registered User
Join Date: Apr 2006
Location: East Sooke B.C. Canada
Posts: 543
|
Re: Need help installing factory A/C in a non-factory A/C 67-72 Truck
I did this to my pick up. I cut the firewall out of the doaner truck, and welded it into mine. For the rest, I found that there was dimples where ever holes need to be drilled. For the vents I just used a hole saw. I still have the A/C dash, cause at first I was going to just weld it in, but decided to save it, just incase I wanted to get rid of the cd player. After the fabricating was done, it was just a matter of bolting it all together. I used all the parts and wiring out of the doaner truck.
|
![]() |
![]() |
![]() |
#7 | |
Senior Member
Join Date: Jul 2006
Location: Midlothian TX
Posts: 315
|
Re: Need help installing factory A/C in a non-factory A/C 67-72 Truck
Quote:
Did you use 2 different sizes of hole saws as the factory holes are not completely round? If no, how did you make the holes, so that the holes were not larger than the vent? |
|
![]() |
![]() |
![]() |
#8 |
Senior Member
Join Date: Jul 2006
Location: Midlothian TX
Posts: 315
|
Re: Need help installing factory A/C in a non-factory A/C 67-72 Truck
What's the best way to cut out the firewall?
|
![]() |
![]() |
![]() |
#9 |
Senior Member
![]() Join Date: Jan 2002
Location: Williston, ND
Posts: 2,999
|
Re: Need help installing factory A/C in a non-factory A/C 67-72 Truck
I did it the same exact way pumpkin did, as far as elongating the holes, I used a dremel tool for that and the finishing of the other center vent cut-out, too. I just used a big sheet of paper, then transfered it to cardboard for the holes on the firewall, though. I just modified mine to the a/c holes. I had thought about cutting the firewall out of my a/c parts cab and doing it that way, but the way i did it seemed easier in the end. I also just switched harnesses from non-a/c to a/c. If you have an a/c cab for reference, use it for all the measurements and everything as it will help a lot. I think that is about everything I can help with.
__________________
68 Chevy CST/10, 50th Anniversary, 327/th400, 373 posi, buckets 68 GMC Shortbox Stepside, 402/th400, Tilt, Tach, Bucket Seats, 3.08 Positraction 69 Chevy Camaro SS, 383, 4 speed, positraction 70 Chevy El Camino SS396, Triple Black, 454/th400, Tach 70 Chevy Shortbox Stepside 4x4, 350/th350, Tilt, Tach, Cab Lights, Bumper Guards, Tow Hooks 70 Chevy 3/4 Longbox, 350/auto, 70k, SURVIVOR 71 Chevy Blazer, CST, 350/auto 71 GMC Sierra K2500, 454, 4 speed, 4.10 posi, 37s 71 Custom/30, Open Road, 350/th400, tilt 72 Chevy Shortbox Fleetside, 496 Stroker/th400, Tilt, Tach, Bucket Seats, 3.42 Posi 72 GMC Sierra Grande 2500. 427/th400, tilt, a/c, tool and stowage, buckets/console, 3.54 posi |
![]() |
![]() |
![]() |
#10 |
Senior Member
Join Date: Jun 2001
Location: Shelbyville, KY
Posts: 3,269
|
Re: Need help installing factory A/C in a non-factory A/C 67-72 Truck
I would remove the hood, pass inner fender, pass hood hinge, glove box door and glove box. Next would be the removal of the old non A/C dash. With it out, it makes swapping out things much easier. Next would be to remove the outer and inner heater box. Then put your A/C overlay in place and mark your firewall to cut out the additional hole for the A/c system. Next would be to install the A/C inner and outer boxes. Do all this before you think about installing the A/C dash. You should be able to get most of this done in one day--you need to order new Defrost, heater under dash waffle hose kit. Leave the compressor, associated hoses and grill stuff for last as that is pretty easy. This is pretty much the reverse order of removal~~.
|
![]() |
![]() |
![]() |
#11 |
TOTY 2006
![]() Join Date: Dec 1999
Location: Magalia CA USA
Posts: 2,270
|
Re: Need help installing factory A/C in a non-factory A/C 67-72 Truck
Nothing to cut out, you only have to drill two holes, one on the firewall side, one on the back side of the firewall (access from glovebox)
IF you look closely, you will see the dimples which are where you would need to drill... |
![]() |
![]() |
![]() |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|