Educate me: Why is this bracket attached to the AC controller, what trucks had them? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**DeadheadNM** · 11-12-2013, 10:40 PM

Here's an AC controller I found loose in the back of a Suburban at a salvage yard (together with most/all of the parts for a 72 burb rear AC setup). Why is the bracket in the photo attached to the AC controller? That on my K20 never had this bracket - it's just bolted to the dash like a heater controller. Also, the screws that affix this bracket to the AC controller are coarsely threaded like those for a heater controller but unlike the fine thread screws that attach my K20 AC controller.

What trucks had these and why not skip the bracket all together?? Is it for a Blazer/Jimmy to attached the underdash speaker? How is YOUR AC controller attached?

Lee H · 11-12-2013, 10:54 PM

In picture one, the two open holes on the outside, those are the mounting holes that hold the unit to the dash. It's upside down in the picture. Two good sized screws come in from under the dash and hold it in place.

**DeadheadNM** · 11-12-2013, 11:02 PM

Quote:

Originally Posted by Lee H

In picture one, the two open holes on the outside, those are the mounting holes that hold the unit to the dash. It's upside down in the picture. Two good sized screws come in from under the dash and hold it in place.

Thanks! I get that part. What I'm wondering is why is this bracket necessary? Other AC controllers I've seen (including that currently on my K20) don't have this bracket at all and are attached directly to the dash. There aren't two styles of AC controllers are there? Were there differing dash holes: one set close together the other further apart?

Lee H · 11-12-2013, 11:05 PM

OK, can't answer to that, my C10 has the bracket.

**DeadheadNM** · 11-13-2013, 12:28 AM

Huh - am I totally mistaken and ALL AC trucks had this bracket? My K20 isn't here yet for me to check but IIRC it bolted onto the dash just like the heater controller in my K10 - no bracket needed.

Andy4639 · 11-13-2013, 07:37 AM

I have never seen a AC controller that didn't have that bracket.
If yours doesn't have it please post some pictures of it and how U have it mounted please.

Dirt's72 · 11-13-2013, 08:28 AM

I pulled my broken one out of a box for my blazer and it's exactly like your pics. Even with the black screws. Other threads are coarse. I hope you get your trucks soon man.

**RenoKeene** · 11-13-2013, 08:54 AM

They all came with that bracket.

**uncle** · 11-13-2013, 09:10 AM

FYI this same control was used in 65-66 Impalas and I think they added bracket to fit trucks. Jmo.

**DeadheadNM** · 11-13-2013, 11:49 AM

Thanks guys - I must be mistaken and will check the K20 when it arrives - hopefully on Sunday. Pete

cheyenne shortstep · 11-13-2013, 12:17 PM

uncle is correct, same controller as Impala [GM was resourceful back then]. All A/C trucks had the adapter.

11-12-2013, 10:40 PM	#1
DeadheadNM Carpe manana Join Date: Dec 2010 Location: Eau Claire, WI Posts: 12,356	Educate me: Why is this bracket attached to the AC controller, what trucks had them? Here's an AC controller I found loose in the back of a Suburban at a salvage yard (together with most/all of the parts for a 72 burb rear AC setup). Why is the bracket in the photo attached to the AC controller? That on my K20 never had this bracket - it's just bolted to the dash like a heater controller. Also, the screws that affix this bracket to the AC controller are coarsely threaded like those for a heater controller but unlike the fine thread screws that attach my K20 AC controller. What trucks had these and why not skip the bracket all together?? Is it for a Blazer/Jimmy to attached the underdash speaker? How is YOUR AC controller attached? Attached Images __________________ 1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland

11-12-2013, 10:54 PM	#2
Lee H Registered User Join Date: Jun 2010 Location: Upland Ca Posts: 4,142	Re: Educate me: Why is this bracket attached to the AC controller, what trucks had th In picture one, the two open holes on the outside, those are the mounting holes that hold the unit to the dash. It's upside down in the picture. Two good sized screws come in from under the dash and hold it in place. __________________ 1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703

11-12-2013, 11:05 PM	#4
Lee H Registered User Join Date: Jun 2010 Location: Upland Ca Posts: 4,142	Re: Educate me: Why is this bracket attached to the AC controller, what trucks had th OK, can't answer to that, my C10 has the bracket. __________________ 1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703

11-13-2013, 12:28 AM	#5
DeadheadNM Carpe manana Join Date: Dec 2010 Location: Eau Claire, WI Posts: 12,356	Re: Educate me: Why is this bracket attached to the AC controller, what trucks had th Huh - am I totally mistaken and ALL AC trucks had this bracket? My K20 isn't here yet for me to check but IIRC it bolted onto the dash just like the heater controller in my K10 - no bracket needed. __________________ 1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland

11-13-2013, 07:37 AM	#6
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Educate me: Why is this bracket attached to the AC controller, what trucks had th I have never seen a AC controller that didn't have that bracket. If yours doesn't have it please post some pictures of it and how U have it mounted please. __________________ 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.

11-13-2013, 08:28 AM	#7
Dirt's72 Registered User Join Date: May 2013 Location: Albuquerque, NM Posts: 1,105	Re: Educate me: Why is this bracket attached to the AC controller, what trucks had th I pulled my broken one out of a box for my blazer and it's exactly like your pics. Even with the black screws. Other threads are coarse. I hope you get your trucks soon man.

11-13-2013, 08:54 AM	#8
RenoKeene Florida Edition Join Date: Oct 2010 Location: Fruitland Park, FL Posts: 4,022	Re: Educate me: Why is this bracket attached to the AC controller, what trucks had th They all came with that bracket. __________________ 70 GMC Short Stepside "Rose"-An American Beauty: Factory 402/TH400, AM/FM, AC, Tilt, Tach, Buckets, Posi, PS, PB, 3-5 Drop, Complete Resto-Rod 67 C-20 Slant Back Wrecker "Mad Max" 67 C-10 Ratrod "Step-N-Wolf" 71 Serro Scotty Sportsman camper "Scotty" 97 LT1 Z28 "The Hornet" Link to more pics of "Rose" http://67-72chevytrucks.com/vboard/a...p?albumid=1684 Check out my "Cheap Tricks" thread and add to it if you can, lots of good info there. http://67-72chevytrucks.com/vboard/s...d.php?t=489394

11-13-2013, 09:10 AM	#9
uncle Senior Member Join Date: Aug 2003 Location: Conyers,Ga. Posts: 7,286	Re: Educate me: Why is this bracket attached to the AC controller, what trucks had th FYI this same control was used in 65-66 Impalas and I think they added bracket to fit trucks. Jmo.

11-13-2013, 11:49 AM	#10
DeadheadNM Carpe manana Join Date: Dec 2010 Location: Eau Claire, WI Posts: 12,356	Re: Educate me: Why is this bracket attached to the AC controller, what trucks had th Thanks guys - I must be mistaken and will check the K20 when it arrives - hopefully on Sunday. Pete __________________ 1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland

11-13-2013, 12:17 PM	#11
cheyenne shortstep Registered User Join Date: Jul 2010 Location: Vista Ca. Posts: 2,405	Re: Educate me: Why is this bracket attached to the AC controller, what trucks had th uncle is correct, same controller as Impala [GM was resourceful back then]. All A/C trucks had the adapter.



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