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04-16-2015, 04:19 PM
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#1 |
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Registered User
Join Date: Sep 2013
Location: Pleasant Ridge, MI
Posts: 285
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Need some help. WTHIT?
What the h... is that? By "that" I mean the the 2 holes and plugs in this firewall just to the left of the heater core cover. Both look improvised and one looks like a cork. Really. Any help would be appreciated.
And for the title of this thread, I used this old SNL skit for inspiration. https://www.youtube.com/watch?v=RV7Qz640OeM Thanks, Phil |
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04-16-2015, 04:24 PM
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#2 |
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Registered User
 
Join Date: Apr 2012
Location: Stillwater, Oklahoma
Posts: 874
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Re: Need some help. WTHIT?
Really hard to see on my phone, but I'll guess they're plugs for an old aftermarket a/c.
__________________
1971 C/10 SWB, 15x8 Rallys, 4.5" X 7" static drop, C-notched, 350/350, 3.73 Posi. .........A 383 and Gear Vendors are on my bucket list. 1972 GMC 4X4 K1500 Survivor - Sold No matter what problems life throws at you, your time on Earth can be incredibly fulfilling and rewarding.....if you just lower your expectations. -Phil Dunphy |
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04-16-2015, 04:36 PM
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#3 |
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Registered User
Join Date: Mar 2015
Location: Fletcher, N.C.
Posts: 309
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Re: Need some help. WTHIT?
These are your heater core hook ups for the heater inside. The heater core may be bad and they've just plugged it off...
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04-16-2015, 05:10 PM
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#4 |
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Registered User
Join Date: Feb 2011
Location: Modesto, CA
Posts: 2,186
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Re: Need some help. WTHIT?
Those are definitely part of a PO hack job, possibly to install an add-on A/C system. Either way, that cork is one way to plug a hole!
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04-16-2015, 05:22 PM
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#5 |
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Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: Need some help. WTHIT?
Former underdash A/C hose holes, very common.
__________________
Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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04-16-2015, 06:28 PM
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#6 |
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Registered User
Join Date: Feb 2015
Location: houston texas
Posts: 206
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Re: Need some help. WTHIT?
my truck has these holes (not plugged) and never had a/c?
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04-16-2015, 06:37 PM
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#7 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: Need some help. WTHIT?
Those are where the factory heater hoses would go on a factory AC truck. If they are not being used then I would get them out and plug up the fire wall. A dealer add on AC would explain them also.
__________________
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. |
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04-17-2015, 11:12 AM
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#8 |
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Registered User
Join Date: Sep 2013
Location: Pleasant Ridge, MI
Posts: 285
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Re: Need some help. WTHIT?
Thanks guys. As always, this forum has the answers. I'll work on upgrading the cork.
Phil |
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