Factory? Hole in the floor board some one identify for me please - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Revelation · 02-26-2014, 09:51 PM

Noticed right after I got my truck on the transmission hump right where it slopes up to go over the bell housing there is a hole in the floorboard metal and the black liner. It's clean cut, looks factory not like some hack cut it with a torch or saw. Is it factory for a truck with an option I do not have? If so what's it for and should there be a plug for it? I'm worried about carbon monoxide coming in the cab through the hole. Any ideas?

cru_zn_29 · 02-26-2014, 10:17 PM

Maybe for a a/c drain from aftermarket A/C unit.

1963c-10 · 02-26-2014, 10:32 PM

How big is it?

Revelation · 02-26-2014, 10:50 PM

Exactly 1 inch

**rideblue00** · 02-26-2014, 11:54 PM

how bout another pic, but back out a little and give a little reference. its a little to close up.

**1971 GMC SHORTY** · 02-27-2014, 12:29 AM

Quote:

Originally Posted by Revelation

Noticed right after I got my truck on the transmission hump right where it slopes up to go over the bell housing there is a hole in the floorboard metal and the black liner. It's clean cut, looks factory not like some hack cut it with a torch or saw. Is it factory for a truck with an option I do not have? If so what's it for and should there be a plug for it? I'm worried about carbon monoxide coming in the cab through the hole. Any ideas?

Under Dash AC Have Same hole I took it out

Revelation · 02-27-2014, 12:34 AM

Quote:

Originally Posted by 1971 GMC SHORTY

Under Dash AC Have Same hole I took it out

Awesome sounds like a reasonable answer
Should I be worried about carbon monoxide coming in the cab?

*Sharps40* · 02-27-2014, 06:42 AM

Only if you an yer gal are on a high fiber diet.

tincan1966 · 02-27-2014, 08:14 AM

Maybe not so much of a carbon monoxide concern, unless you have an exhaust leak up front, but I'd cover it just to reduce a draft in the cooler months.

Mater/10 · 02-27-2014, 01:48 PM

Im going to have to agree with the Aftermarket a/c answer mine has 1" hoses that run from the unit into the floor at the location specified.

Revelation · 02-27-2014, 02:41 PM

Thanks for the help guys that answers my ? I'll most likely seal it up

02-26-2014, 09:51 PM	#1
Revelation Registered User Join Date: Feb 2014 Location: Midwest City, Oklahoma Posts: 202	Factory? Hole in the floor board some one identify for me please Noticed right after I got my truck on the transmission hump right where it slopes up to go over the bell housing there is a hole in the floorboard metal and the black liner. It's clean cut, looks factory not like some hack cut it with a torch or saw. Is it factory for a truck with an option I do not have? If so what's it for and should there be a plug for it? I'm worried about carbon monoxide coming in the cab through the hole. Any ideas?

02-26-2014, 10:17 PM	#2
cru_zn_29 Registered User Join Date: Feb 2011 Location: Joshua Tree Ca. Posts: 719	Re: Factory? Hole in the floor board some one identify for me please Maybe for a a/c drain from aftermarket A/C unit.

02-26-2014, 10:32 PM	#3
1963c-10 Registered User Join Date: Nov 2011 Location: fayetteville nc Posts: 10,338	Re: Factory? Hole in the floor board some one identify for me please How big is it? __________________ 1963 Short bed step side SBW 427 big block and borg warner T-16 HD 3 speed manual http://67-72chevytrucks.com/vboard/s...d.php?t=519869 1963 Short bed fleetside BBW 348 1st gen big block w/Powerglide http://67-72chevytrucks.com/vboard/s...d.php?t=619024 1964 Short bed trailer

02-26-2014, 10:50 PM	#4
Revelation Registered User Join Date: Feb 2014 Location: Midwest City, Oklahoma Posts: 202	Re: Factory? Hole in the floor board some one identify for me please Exactly 1 inch __________________ Oklahoma 60-66 Chevy/GMC truck facebook group

02-26-2014, 11:54 PM	#5
rideblue00 Senior Member Join Date: Feb 2010 Location: Lambertville, MI Posts: 1,861	Re: Factory? Hole in the floor board some one identify for me please how bout another pic, but back out a little and give a little reference. its a little to close up.

02-27-2014, 06:42 AM	#8
Sharps40 Account Suspended Join Date: Oct 2012 Location: here Posts: 2,408	Re: Factory? Hole in the floor board some one identify for me please Only if you an yer gal are on a high fiber diet.

02-27-2014, 08:14 AM	#9
tincan1966 Registered User Join Date: Oct 2010 Location: Independence,KS Posts: 1,477	Re: Factory? Hole in the floor board some one identify for me please Maybe not so much of a carbon monoxide concern, unless you have an exhaust leak up front, but I'd cover it just to reduce a draft in the cooler months.

02-27-2014, 01:48 PM	#10
Mater/10 Registered User Join Date: Jun 2013 Location: Fort Worth, Texas Posts: 331	Re: Factory? Hole in the floor board some one identify for me please Im going to have to agree with the Aftermarket a/c answer mine has 1" hoses that run from the unit into the floor at the location specified. __________________ 1964 Chevorlet Custom 10 350/350 ,ps,mb,A/c,BBW -Build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=608625 1969 Chevy Nova 2 dr I6 250/powerglide 1967,68,69,70,71,72 Chevy Frankenstein

02-27-2014, 02:41 PM	#11
Revelation Registered User Join Date: Feb 2014 Location: Midwest City, Oklahoma Posts: 202	Re: Factory? Hole in the floor board some one identify for me please Thanks for the help guys that answers my ? I'll most likely seal it up __________________ Oklahoma 60-66 Chevy/GMC truck facebook group



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