Chrome aftermarket locking gas caps - The 1947 - Present Chevrolet & GMC Truck Message Board Network

wwotr · 04-13-2009, 09:42 AM

Does anyone know where I can get a Chrome Aftermarket Locking Gas Cap for my 72 GMC Shortbed Fleetside?
Any Links, URL's would be appreciated!

Roger

cdowns · 04-13-2009, 10:07 AM

auto parts store

68gmsee · 04-13-2009, 10:09 AM

This is the best fit I found.

http://www.napaonline.com/MasterPage...+-+Keyed+Alike

But, got to caution you. Might want to glance at my post last week...

http://67-72chevytrucks.com/vboard/s...d.php?t=337744

697498chevy · 04-13-2009, 10:37 AM

Had one like that on my '69 , not a NAPA . After a fill up , a right turn would spill gas all over the road . Ended up with a non locker that does OK . Never fill up to the filler neck though . Just my two cents worth .

red71c10 · 04-13-2009, 07:03 PM

Quote:

Originally Posted by wwotr

Does anyone know where I can get a Chrome Aftermarket Locking Gas Cap for my 72 GMC Shortbed Fleetside?
Any Links, URL's would be appreciated!

Roger

Here's a couple:

http://www.brotherstrucks.com/prodin...number=GCP66FL

http://www.parts123.com/PartFrame.as...spp.com&TITLE=

The second one is listed in the catalog as '72, but the website says '71

wwotr · 04-13-2009, 08:46 PM

Thanks for all the links!

I' looking for something thats all Chrome or I've seen them in Chrome with a Chevy Bow Tie across them.
I'm trying to stay away from your "Standard looking" Stant, Kragen, Grand Auto Gas Caps.

Roger

longhorn70gmc · 04-14-2009, 02:37 AM

Stay away from the plastic ones. They pried it off in 2 seconds with a scewdriver, AKA a pri bar, and got all my gas. I still don't trust the metal ones, but I fortified it with a little Mcgyver action home made cover and no more steeling my gas. Check out my Avitar?

caminokid · 04-14-2009, 09:27 AM

I have one of those chrome locking gas caps on my truck. It was on the first 69 I got 2 years ago. The guy got it right after he bought it in 91...so its worked good all these years. A little rusty...but trusty.

GMC AMI · 04-14-2009, 09:43 AM

72 caps are not the same dia. as the other years. Due to the introduction of no lead fuel the fill tube dia. is smaller than earlier years. Unless someone swapped the tank for an older one he would need one for a 72 only.

**70cst** · 04-14-2009, 09:47 AM

Quote:

Originally Posted by GMC AMI

72 caps are not the same dia. as the other years. Due to the introduction of no lead fuel the fill tube dia. is smaller than earlier years. Unless someone swapped the tank for an older one he would need one for a 72 only.

Goooood point! I never thought about that. Good info.

**Stocker** · 04-14-2009, 10:36 AM

Quote:

Originally Posted by GMC AMI

72 caps are not the same dia. as the other years. Due to the introduction of no lead fuel the fill tube dia. is smaller than earlier years.

I recall 1975 as the introduction of catalytic converters, and unleaded fuel, for cars and light (under 8600#?) trucks.....???

My '72 has large-diameter fill tube, not the restricted one for unleaded.

GMC AMI · 04-14-2009, 01:52 PM

NAPA lists 4 part #'s for the year 72

jbristo67 · 04-14-2009, 02:06 PM

I know this isnt what you ask but it isnt worth the trouble. If I want to steel your gas you haveing a locking gas cap just means I am going to have to walk back to my truck to get a screw driver and since I am a theif I wouldnt care if anything falls in your tank. Just my .02

GMC AMI · 04-14-2009, 04:01 PM

Quote:

Originally Posted by jbristo67

I know this isnt what you ask but it isnt worth the trouble. If I want to steel your gas you haveing a locking gas cap just means I am going to have to walk back to my truck to get a screw driver and since I am a theif I wouldnt care if anything falls in your tank. Just my .02

Or you can cut the rubber line from the tank under the truck.

wwotr · 04-30-2009, 11:21 AM

So correct me if I'm wrong,
There are 3 things I can think of when looking to purchase a Chrome Locking Gas Cap:
1)Wheather your Tank is "Vented" or not.
2)Whether it has an EEC System.
3)The size of the neck in relationship to the Cap.

I'm looking at the 3 Major parts distributors for GMC parts and they List exactly what I'm looking for in a Gas Cap only it is for 67-71 GMC.

I have a 72 GMC.

Unless it was a Screw on type cap, I feel that as long as I follow the 3 guidlines above, I should be OK..............correct?

Roger
"RATIKLE"

longhorn70gmc · 05-03-2009, 08:50 PM

Quote:

Originally Posted by GMC AMI

Or you can cut the rubber line from the tank under the truck.

This is true, however I even took care of that. I made the gas thief not like me.

youhaveamonkey · 05-01-2009, 01:42 AM

I have a 72 c/20. I am the second owner and have owned it for about 10 years. I have NO idea if they are available or not, but mine has a conical spring looking thing that fits down inside the filler neck. It keeps a tube from getting down in there accept a really small one (ive tried for my lawn mower). You would be hard pressed to syphon gas in any decent amount of time out of that truck. Of course it does NOTHING for the issue of people putting stuff IN your gas tank. I don't know if this is helpful or not but, it might be worth it if you have a hard time finding a locking fuel cap.

**special-K** · 05-01-2009, 07:18 AM

The locking caps are stainless.

wwotr · 05-02-2009, 01:37 PM

OK I checked my Truck at my Mechanic's yesterday.
It DOES have an EEC System.
It does not have a "Threaded Neck" nor a "Deep Cam".
In fact, the cap that is on there now, closely resembles,
a radiator Cap (it isn't though).

The cap that is currently on there is NOT a Vented Cap.
So I'm inclined to just order a Chrome Locking Cap from Classic Industries for $6.95 and see if it works.
It is more about aesthetics than to protect someone from stealing my gas or putting some CRAP INTO my Tank.
In the 20 seconds it takes a Thief to go get a Screwdriver, he may think twice and go for the Gas in the Vehicle that is parked a couple lengths down the street.

Now getting back on topic, if I were to put a Non Vented Gas Cap on an EEC system, what is the worse that could happen?
Would the Truck stop running because there was now a non vented cap on it, causing (lets say) the Gas Tank to collapse inwards/suction?

I'm sure the cap that's on it now is NOT vented, and I've been driving it for 2 weeks with no adverse effects.

Roger
"RATIKLE"

GMC AMI · 05-02-2009, 02:37 PM

Ok for what's worth. I had a non vented locking cap on my 68 4x4 pickup. After a short while the tank did indeed suck in and I heard the gas gauge float hitting on the inside of the tank. I went back to a nice chrome vented non-locking cap.

04-13-2009, 09:42 AM	#1
wwotr Registered User Join Date: Jan 2005 Location: Clearlake Oaks CA Posts: 1,716	Chrome aftermarket locking gas caps Does anyone know where I can get a Chrome Aftermarket Locking Gas Cap for my 72 GMC Shortbed Fleetside? Any Links, URL's would be appreciated! Roger

04-13-2009, 10:07 AM	#2
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Chrome aftermarket locking gas caps auto parts store __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

04-13-2009, 10:09 AM	#3
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: Chrome aftermarket locking gas caps This is the best fit I found. http://www.napaonline.com/MasterPage...+-+Keyed+Alike But, got to caution you. Might want to glance at my post last week... http://67-72chevytrucks.com/vboard/s...d.php?t=337744

04-13-2009, 10:37 AM	#4
697498chevy Registered User Join Date: Jan 2009 Location: South Carolina Posts: 266	Re: Chrome aftermarket locking gas caps Had one like that on my '69 , not a NAPA . After a fill up , a right turn would spill gas all over the road . Ended up with a non locker that does OK . Never fill up to the filler neck though . Just my two cents worth .

04-13-2009, 08:46 PM	#6
wwotr Registered User Join Date: Jan 2005 Location: Clearlake Oaks CA Posts: 1,716	Re: Chrome aftermarket locking gas caps Thanks for all the links! I' looking for something thats all Chrome or I've seen them in Chrome with a Chevy Bow Tie across them. I'm trying to stay away from your "Standard looking" Stant, Kragen, Grand Auto Gas Caps. Roger

04-14-2009, 02:37 AM	#7
longhorn70gmc Senior Member Join Date: Feb 2001 Location: Ridgecrest. CA, USA Posts: 1,715	Re: Chrome aftermarket locking gas caps Stay away from the plastic ones. They pried it off in 2 seconds with a scewdriver, AKA a pri bar, and got all my gas. I still don't trust the metal ones, but I fortified it with a little Mcgyver action home made cover and no more steeling my gas. Check out my Avitar? __________________ Billy 1970 GMC Sierra Grande 402/TH400 (Longhorn)14 years and counting rebuild! 1975 (Build) Chevrolet SWB 4X4 350 SB Lifted 6 inches 1970 Ford F250 Ranger 390 BB 2010 Ford Super Duty F250 XLT W/4 inch lift kit and Pro Comp Tires Hub Cap Freak! *I need another truck like I need another hole in the head!* I'M IN THE MARKET...AS IT WERE!

04-14-2009, 09:27 AM	#8
caminokid Chevy nut Join Date: Jun 2007 Location: Springfield, Illinois Posts: 2,266	Re: Chrome aftermarket locking gas caps I have one of those chrome locking gas caps on my truck. It was on the first 69 I got 2 years ago. The guy got it right after he bought it in 91...so its worked good all these years. A little rusty...but trusty. __________________ 84 Chevy Custom Deluxe 1/2 Ton Named Fade To Black II "Remember kids there is NO replacement for displacement!"

04-14-2009, 09:43 AM	#9
GMC AMI Registered User Join Date: Apr 2004 Location: The Other Maine! Posts: 2,236	Re: Chrome aftermarket locking gas caps 72 caps are not the same dia. as the other years. Due to the introduction of no lead fuel the fill tube dia. is smaller than earlier years. Unless someone swapped the tank for an older one he would need one for a 72 only. __________________ 1968 Chevy 4x4 307 4 speed

04-14-2009, 01:52 PM	#12
GMC AMI Registered User Join Date: Apr 2004 Location: The Other Maine! Posts: 2,236	Re: Chrome aftermarket locking gas caps NAPA lists 4 part #'s for the year 72 Attached Images __________________ 1968 Chevy 4x4 307 4 speed Last edited by GMC AMI; 04-14-2009 at 01:53 PM.

04-14-2009, 02:06 PM	#13
jbristo67 resident oilfield trash Join Date: Jan 2009 Location: Lubbock TX Posts: 1,465	Re: Chrome aftermarket locking gas caps I know this isnt what you ask but it isnt worth the trouble. If I want to steel your gas you haveing a locking gas cap just means I am going to have to walk back to my truck to get a screw driver and since I am a theif I wouldnt care if anything falls in your tank. Just my .02 __________________ 1967 SWB C10 396/400 factory air factory tach (sadly had to send to a new home) 1986 Honda 70 Fourtrax 1991 Chevrolet K5 blazer 2wd 1982 Mastercraft Pro Star 190 Stars and Stripes 2002 Chevrolet Tahoe 2011 Nissan Armada

04-30-2009, 11:21 AM	#15
wwotr Registered User Join Date: Jan 2005 Location: Clearlake Oaks CA Posts: 1,716	Re: Chrome aftermarket locking gas caps So correct me if I'm wrong, There are 3 things I can think of when looking to purchase a Chrome Locking Gas Cap: 1)Wheather your Tank is "Vented" or not. 2)Whether it has an EEC System. 3)The size of the neck in relationship to the Cap. I'm looking at the 3 Major parts distributors for GMC parts and they List exactly what I'm looking for in a Gas Cap only it is for 67-71 GMC. I have a 72 GMC. Unless it was a Screw on type cap, I feel that as long as I follow the 3 guidlines above, I should be OK..............correct? Roger "RATIKLE" __________________ Hello members... I'd like you to know that I sold, my 72 GMC (Ratikle), back in November of 2011. I don't visit the site much anymore, but please feel free, to drop me a private message. RIP...."RATIKLE"

05-01-2009, 01:42 AM	#17
youhaveamonkey Registered User Join Date: Mar 2009 Location: Oakland, Ca Posts: 39	Re: Chrome aftermarket locking gas caps I have a 72 c/20. I am the second owner and have owned it for about 10 years. I have NO idea if they are available or not, but mine has a conical spring looking thing that fits down inside the filler neck. It keeps a tube from getting down in there accept a really small one (ive tried for my lawn mower). You would be hard pressed to syphon gas in any decent amount of time out of that truck. Of course it does NOTHING for the issue of people putting stuff IN your gas tank. I don't know if this is helpful or not but, it might be worth it if you have a hard time finding a locking fuel cap.

05-01-2009, 07:18 AM	#18
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Chrome aftermarket locking gas caps The locking caps are stainless. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

05-02-2009, 01:37 PM	#19
wwotr Registered User Join Date: Jan 2005 Location: Clearlake Oaks CA Posts: 1,716	Re: Chrome aftermarket locking gas caps OK I checked my Truck at my Mechanic's yesterday. It DOES have an EEC System. It does not have a "Threaded Neck" nor a "Deep Cam". In fact, the cap that is on there now, closely resembles, a radiator Cap (it isn't though). The cap that is currently on there is NOT a Vented Cap. So I'm inclined to just order a Chrome Locking Cap from Classic Industries for $6.95 and see if it works. It is more about aesthetics than to protect someone from stealing my gas or putting some CRAP INTO my Tank. In the 20 seconds it takes a Thief to go get a Screwdriver, he may think twice and go for the Gas in the Vehicle that is parked a couple lengths down the street. Now getting back on topic, if I were to put a Non Vented Gas Cap on an EEC system, what is the worse that could happen? Would the Truck stop running because there was now a non vented cap on it, causing (lets say) the Gas Tank to collapse inwards/suction? I'm sure the cap that's on it now is NOT vented, and I've been driving it for 2 weeks with no adverse effects. Roger "RATIKLE" __________________ Hello members... I'd like you to know that I sold, my 72 GMC (Ratikle), back in November of 2011. I don't visit the site much anymore, but please feel free, to drop me a private message. RIP...."RATIKLE"

05-02-2009, 02:37 PM	#20
GMC AMI Registered User Join Date: Apr 2004 Location: The Other Maine! Posts: 2,236	Re: Chrome aftermarket locking gas caps Ok for what's worth. I had a non vented locking cap on my 68 4x4 pickup. After a short while the tank did indeed suck in and I heard the gas gauge float hitting on the inside of the tank. I went back to a nice chrome vented non-locking cap. __________________ 1968 Chevy 4x4 307 4 speed



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