can some one tell me what goes here? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

degree01 · 10-11-2008, 09:07 PM

Hello, i have a 1966 chevy truck that i am restoring and there is a hole about 3" across that is under my heater/air system and i have no idea what goes here of it is part of the heater unit, but on the heater unit there does not seem to be anything that would go there. Here is an attachment of the picture of that round Hole and if some one can tell me what went there, I would appreciate it.

thank you all in advance.

60ratrod · 10-12-2008, 02:44 AM

depending on what side of the truck you are on(ie drivers side) then it looks like that's where a bulkhead connector was. i had to remove the majority of min cause they were too corroded or messed up

**Chevy Fleetside** · 10-12-2008, 10:16 AM

Is it a factory A/C Truck? Looks like it would be something for that or one of the last owners when coo coo with a hole saw..

tiggamonsta · 10-12-2008, 10:39 AM

If that is the passenger's side and the 3" across is a typo then my 64 has the same hole. On mine there is nothing in it and my truck is still all original with no A/C.

PrerunnerRob · 10-12-2008, 11:12 AM

The onlt thing I can think of is the A/C line set and drain, but there would have to be some kind of gasket or filler around the lines to the body. The only reason I suspect A/C is due to the location of the hole. I'll check around....

degree01 · 10-12-2008, 11:15 AM

Ok thanks guy's and it is in the passenger side and it might be 3" I was just guesstamating, so maybe it originally had A/C and that might be what it's for, but no it only has the heater.

PrerunnerRob · 10-12-2008, 11:35 AM

I just tried to find anything in the LMC catalog, but nothing is detailed in there. Sorry!

degree01 · 10-12-2008, 11:50 AM

Ok thanks guy's and it is in the passenger side and it might be 3" I was just guesstamating, so maybe it originally had A/C and that might be what it's for, but no it only has the heater oh well once i get deep in to rewiring and stuff im sure i will find out what it's for for sure.

thank you all for the reply's

60ratrod · 10-12-2008, 01:47 PM

it also might be where the engine wiring harness came through or the heater/ac control harness. i would look at an lmc truck catalog and a vin decoder sight and cross reference your vin number. once you decode your vin you should be able to tell if it was a factory ac truck or not. i think that you can also take the vin to the local chevy dealership/repair parts department and they might be able to decode that vin for you

66Gilbert · 10-12-2008, 01:57 PM

Here is picture of a factory A/C truck that I own. The hole for the A/C lines is oblong. I think that your truck had A/C ? The round hole may be the difference in which factory it was built at,or it may have had an under dash unit and used that hole for the lines.

*LILRED66* · 10-13-2008, 01:21 PM

Quote:

Originally Posted by 60ratrod

it also might be where the engine wiring harness came through or the heater/ac control harness. i would look at an lmc truck catalog and a vin decoder sight and cross reference your vin number. once you decode your vin you should be able to tell if it was a factory ac truck or not. i think that you can also take the vin to the local chevy dealership/repair parts department and they might be able to decode that vin for you

The VIN on the '60-'66 Chevy trucks does not tell anything about accessories; factory or dealer installed.

*LILRED66* · 10-13-2008, 01:23 PM

I have owned over 25 '64-'66 Chevy trucks and never seen a hole in this location that was factory on an A/C or non-A/C truck. This hole is in the general location of the refrigerant line-set for a factory A/C truck and may have been what it was used for.

10-11-2008, 09:07 PM	#1
degree01 Registered User Join Date: Oct 2008 Location: Garland texas Posts: 34	can some one tell me what goes here? Hello, i have a 1966 chevy truck that i am restoring and there is a hole about 3" across that is under my heater/air system and i have no idea what goes here of it is part of the heater unit, but on the heater unit there does not seem to be anything that would go there. Here is an attachment of the picture of that round Hole and if some one can tell me what went there, I would appreciate it. thank you all in advance. Attached Images

10-12-2008, 02:44 AM	#2
60ratrod yes, i do Join Date: Jun 2007 Location: Spokane, wa Posts: 2,734	Re: can some one tell me what goes here? depending on what side of the truck you are on(ie drivers side) then it looks like that's where a bulkhead connector was. i had to remove the majority of min cause they were too corroded or messed up

10-12-2008, 10:16 AM	#3
Chevy Fleetside Registered User Join Date: Sep 2006 Location: San Francisco Posts: 4,782	Re: can some one tell me what goes here? Is it a factory A/C Truck? Looks like it would be something for that or one of the last owners when coo coo with a hole saw.. __________________ "A man and his truck, what a beautiful thing" 65 Short Fleetside BBC 65 Long Fleetside 283 3 on the tree for now. my build thread http://www.67-72chevytrucks.com/vboa...d.php?t=259536

10-12-2008, 10:39 AM	#4
tiggamonsta Registered User Join Date: Aug 2008 Location: Cedar Creek, TX Posts: 167	Re: can some one tell me what goes here? If that is the passenger's side and the 3" across is a typo then my 64 has the same hole. On mine there is nothing in it and my truck is still all original with no A/C.

10-12-2008, 11:12 AM	#5
PrerunnerRob Registered User Join Date: Jan 2007 Location: San Jose Posts: 847	Re: can some one tell me what goes here? The onlt thing I can think of is the A/C line set and drain, but there would have to be some kind of gasket or filler around the lines to the body. The only reason I suspect A/C is due to the location of the hole. I'll check around....

10-12-2008, 11:15 AM	#6
degree01 Registered User Join Date: Oct 2008 Location: Garland texas Posts: 34	Re: can some one tell me what goes here? Ok thanks guy's and it is in the passenger side and it might be 3" I was just guesstamating, so maybe it originally had A/C and that might be what it's for, but no it only has the heater.

10-12-2008, 11:35 AM	#7
PrerunnerRob Registered User Join Date: Jan 2007 Location: San Jose Posts: 847	Re: can some one tell me what goes here? I just tried to find anything in the LMC catalog, but nothing is detailed in there. Sorry!

10-12-2008, 11:50 AM	#8
degree01 Registered User Join Date: Oct 2008 Location: Garland texas Posts: 34	Re: can some one tell me what goes here? Ok thanks guy's and it is in the passenger side and it might be 3" I was just guesstamating, so maybe it originally had A/C and that might be what it's for, but no it only has the heater oh well once i get deep in to rewiring and stuff im sure i will find out what it's for for sure. thank you all for the reply's

10-12-2008, 01:47 PM	#9
60ratrod yes, i do Join Date: Jun 2007 Location: Spokane, wa Posts: 2,734	Re: can some one tell me what goes here? it also might be where the engine wiring harness came through or the heater/ac control harness. i would look at an lmc truck catalog and a vin decoder sight and cross reference your vin number. once you decode your vin you should be able to tell if it was a factory ac truck or not. i think that you can also take the vin to the local chevy dealership/repair parts department and they might be able to decode that vin for you Last edited by 60ratrod; 10-12-2008 at 01:50 PM.

10-12-2008, 01:57 PM	#10
66Gilbert 1966 Crew Cab & 4X4 Fanatic Join Date: Dec 2005 Location: Arizona Posts: 904	Re: can some one tell me what goes here? Here is picture of a factory A/C truck that I own. The hole for the A/C lines is oblong. I think that your truck had A/C ? The round hole may be the difference in which factory it was built at,or it may have had an under dash unit and used that hole for the lines. Last edited by 66Gilbert; 10-12-2008 at 02:07 PM.

10-13-2008, 01:23 PM	#12
LILRED66 Account Suspended Join Date: May 2005 Location: Kansas City, KS Posts: 3,906	Re: can some one tell me what goes here? I have owned over 25 '64-'66 Chevy trucks and never seen a hole in this location that was factory on an A/C or non-A/C truck. This hole is in the general location of the refrigerant line-set for a factory A/C truck and may have been what it was used for.



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