What is this hole for? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jbgroby · 02-26-2011, 11:44 AM

Just to the left of the brake light routing alcove, there is a hole (just under the jack lock down. I can't remember what thats for? Anybody know? There is one on each side.

Delmo · 02-26-2011, 01:51 PM

I think it's where the fuel valve for trucks with dual tanks is mounted. I think.

TopFuel1966 · 02-26-2011, 02:40 PM

My 66 Chevy has a duplicate on the pass side so I was thinking they are for mounting seat belt anchors.

markeb01 · 02-26-2011, 04:09 PM

Mine has a seat belt hole in that location on both sides. Thinking back my wife's 68 F250 also had a tank valve in the same spot. Not sure if GMC offered that option in 1960.

mikie 1954 · 02-26-2011, 04:16 PM

I agree with Delmo. Thats where my tank valve is located, but I don't have one on the passinger side. Will be interesting to find out.

Touchdown67 · 02-26-2011, 06:20 PM

On the subject of "what is this hole for" can anyone tell me what this hole is for? The hole just above the sill plate one large 1 3/4" hole and 2 holes above it that are about 1/4"

markeb01 · 02-26-2011, 08:28 PM

The large hole is for the main wiring running to the rear of the truck. The two little holes were probably drilled by a previous owner, or for a dealer installed accessory so they would share the same routing are the basic wiring. Here's a copy of the accessory installation for directional signals on a 1960:

Touchdown67 · 02-27-2011, 03:10 PM

Thanks Markeb01. That sheds some light on it. Great diagram....

Touchdown67 · 02-27-2011, 03:11 PM

Now I need to look for the cover plate for this...

paul63c10 · 02-27-2011, 04:23 PM

hey Markeb.... were do you get all of those manuals?

awbrown · 02-27-2011, 05:40 PM

Yeah Mark fess up ! after I get mine apart I am sure I will need one of those!!!

jbgroby · 02-27-2011, 06:01 PM

He can't tell you 'cause it a surprise and we'll let you know later nana

jbgroby · 02-27-2011, 06:02 PM

Quote:

Originally Posted by Touchdown67

Now I need to look for the cover plate for this...

Touchdown, I might have a spare, it'll take a while to dig through all the crap I've piled up over the past 10 years make yourself a post it note to remind me to look in about a month.

Touchdown67 · 02-27-2011, 07:06 PM

Thanks jbgroby... I will keep in touch....

02-26-2011, 11:44 AM	#1
jbgroby Registered User Join Date: Nov 2008 Location: Lacombe, LA Posts: 2,772	What is this hole for? Just to the left of the brake light routing alcove, there is a hole (just under the jack lock down. I can't remember what thats for? Anybody know? There is one on each side. Attached Images __________________ http://s1299.photobucket.com/user/jb...23904108567829 Last edited by jbgroby; 02-26-2011 at 11:47 AM.

02-26-2011, 01:51 PM	#2
Delmo Registered User Join Date: Feb 2003 Location: Burbank CA Posts: 1,226	Re: What is this hole for? I think it's where the fuel valve for trucks with dual tanks is mounted. I think.

02-26-2011, 02:40 PM	#3
TopFuel1966 Registered User Join Date: Jul 2009 Location: Menifee, CA Posts: 471	Re: What is this hole for? My 66 Chevy has a duplicate on the pass side so I was thinking they are for mounting seat belt anchors. Last edited by TopFuel1966; 02-26-2011 at 02:41 PM. Reason: sp

02-26-2011, 04:09 PM	#4
markeb01 Senior Enthusiast Join Date: Feb 2007 Location: Spokane Valley, WA Posts: 8,356	Re: What is this hole for? Mine has a seat belt hole in that location on both sides. Thinking back my wife's 68 F250 also had a tank valve in the same spot. Not sure if GMC offered that option in 1960. Last edited by markeb01; 02-26-2011 at 04:20 PM.

02-26-2011, 04:16 PM	#5
mikie 1954 Registered User Join Date: May 2009 Location: caliente ca. Posts: 297	Re: What is this hole for? I agree with Delmo. Thats where my tank valve is located, but I don't have one on the passinger side. Will be interesting to find out.

02-26-2011, 06:20 PM	#6
Touchdown67 Registered User Join Date: Jul 2010 Location: Scottsdale, Arizona Posts: 204	Re: What is this hole for? On the subject of "what is this hole for" can anyone tell me what this hole is for? The hole just above the sill plate one large 1 3/4" hole and 2 holes above it that are about 1/4" Attached Images

02-26-2011, 08:28 PM	#7
markeb01 Senior Enthusiast Join Date: Feb 2007 Location: Spokane Valley, WA Posts: 8,356	Re: What is this hole for? The large hole is for the main wiring running to the rear of the truck. The two little holes were probably drilled by a previous owner, or for a dealer installed accessory so they would share the same routing are the basic wiring. Here's a copy of the accessory installation for directional signals on a 1960:

02-27-2011, 03:10 PM	#8
Touchdown67 Registered User Join Date: Jul 2010 Location: Scottsdale, Arizona Posts: 204	Re: What is this hole for? Thanks Markeb01. That sheds some light on it. Great diagram....

02-27-2011, 03:11 PM	#9
Touchdown67 Registered User Join Date: Jul 2010 Location: Scottsdale, Arizona Posts: 204	Re: What is this hole for? Now I need to look for the cover plate for this...

02-27-2011, 04:23 PM	#10
paul63c10 Registered User Join Date: Jan 2011 Location: New Windsor, NY Posts: 51	Re: What is this hole for? hey Markeb.... were do you get all of those manuals?

02-27-2011, 05:40 PM	#11
awbrown Registered User Join Date: Aug 2009 Location: Detroit MI Posts: 1,209	Re: What is this hole for? Yeah Mark fess up ! after I get mine apart I am sure I will need one of those!!!

02-27-2011, 06:01 PM	#12
jbgroby Registered User Join Date: Nov 2008 Location: Lacombe, LA Posts: 2,772	Re: What is this hole for? He can't tell you 'cause it a surprise and we'll let you know later nana __________________ http://s1299.photobucket.com/user/jb...23904108567829

02-27-2011, 07:06 PM	#14
Touchdown67 Registered User Join Date: Jul 2010 Location: Scottsdale, Arizona Posts: 204	Re: What is this hole for? Thanks jbgroby... I will keep in touch....



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