The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-19-2024, 06:57 PM   #1
Luke87gt
Registered User
 
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 232
Gas tank in the cabin - safety

Hi guys, when I was in college, I took an engineering ethics course where we did a case study on the Ford Pinto. The vehicle had a design flaw where two bolts would penetrate the tank if the vehicle was in a severe enough rear end collision.

When I saw that the gas tank in my c10 was directly behind the seat, it immediately made me think of that college case study lol

I wanted to check in with you guys on how much of a safety concern is the placement of the tank in our trucks? I know they do make relocation kids to get the tank out of the cabin but wonder what the general consensus is here with the oem tank placement.

Thank you!
__________________
1969 C10 Shortbed
Luke87gt is offline   Reply With Quote
Old 08-19-2024, 06:59 PM   #2
leddzepp
Moderator
 
leddzepp's Avatar
 
Join Date: May 2007
Location: Southern Cal
Posts: 20,017
Re: Gas tank in the cabin - safety

Zero concern.
__________________
1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed.

1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck.


RIP ElJay
RIP 67ChevyRedneck
RIP Grumpy Old Man
RIP FleetsidePaul
leddzepp is offline   Reply With Quote
Old 08-19-2024, 07:37 PM   #3
Stocker
20' Daredevil (Ret)
 
Stocker's Avatar
 
Join Date: May 2003
Location: Jefferson State
Posts: 13,688
Re: Gas tank in the cabin - safety

Quote:
Originally Posted by leddzepp View Post
Zero concern.
This ^^^^^^^. I have owned my truck 47 years and for most of those, it was my daily driver. Had I been concerned, I might have relocated the tank -- or sold the truck. In fact, relocating it to the rear of the truck could have been a bad move, what with the odds of getting rearended. Which brings us back to your Pinto example.
__________________
- Mike -

1972 K20 LWB 350/350/205

RIP El Jay
Stocker is offline   Reply With Quote
Old 08-19-2024, 07:40 PM   #4
dmjlambert
Senior Member
 
dmjlambert's Avatar
 
Join Date: Apr 2016
Location: Cypress, TX
Posts: 3,803
Re: Gas tank in the cabin - safety

The cab is the safest place for the gas tank. If you're out doing truck stuff there's no chance of damaging the tank with rocks, debris, etc. Contrary to what makes exciting TV shows and movies, gas tanks rarely explode in accidents. I like driving around and hearing the gas slosh around in there. More concerned about lack of air bags (not suspension kind).
dmjlambert is offline   Reply With Quote
Old 08-19-2024, 07:43 PM   #5
purple gas
Registered User
 
Join Date: Oct 2004
Location: saskatoon, planet earth
Posts: 694
Re: Gas tank in the cabin - safety

When I was a young guy in small town Saskatchewan there was a body shop a couple blocks from my house.
Any vehicle that was in a crash would be hauled to the back lot until the insurance company dealt with the claim.
I saw some really badly messed up 67 -72s. Rollovers, head on collisions, T-bone collisions, you name it.

The only trucks I saw that had a fire were owned by guys who couldn't make the payments and burnt it for the insurance money.
Is it impossible the gastank might catch fire? No.
Highly unlikely.
If you're worried about safety, don't drive like an idiot and install 3 point seatbelts.
Or, buy Volvo.
__________________
I got a bench seat baby, you don't have to sit over there.
purple gas is offline   Reply With Quote
Old 08-19-2024, 08:20 PM   #6
Luke87gt
Registered User
 
Join Date: Feb 2024
Location: Pleasanton CA
Posts: 232
Re: Gas tank in the cabin - safety

Great replies, thank you all!

I’ll retire any concerns I had ��
__________________
1969 C10 Shortbed
Luke87gt is offline   Reply With Quote
Old 08-19-2024, 08:58 PM   #7
HO455
Post Whore
 
HO455's Avatar
 
Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,267
Re: Gas tank in the cabin - safety

Not to be worried about. Pintos were not really a problem either. Only as seen on TV. My dad put his 72 HiBoy F250 through the backend of a Seventy something Pinto hatchback. The front bumper was against the front seat backs in the Pinto when everything stopped moving.

The Pinto guy was backing up on a snow covered two lane highway with 3 foot berms on each side, with oncoming traffic, in the dark, because "He slid past his mailbox." My dad was unhurt and was able to back the truck off of the Pinto and drive home. This occurred about 3 months before the whole Pinto fire thing blew up in the news.

The only car that I know of that is a concern is the 1992 to 1996 (I think) Ford Crown Vic police cars. Those cars did have a problem when getting hit in the rear. Several police officers died after crashes when their car caught fire and the officers were unable to get out. There were others who were badly injured as well. Fuel Safe in Bend, OR made thousands of fuel cells for police departments after the class action lawsuits started.
__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.
RIP Bob Parks.
1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo
If it breaks I didn't want it in the first place
The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377
HO455 is offline   Reply With Quote
Old 08-19-2024, 10:51 PM   #8
Steeveedee
Who Changed This?
 
Steeveedee's Avatar
 
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,574
Re: Gas tank in the cabin - safety

It wasn't actually a design flaw with the Pinto. It was just easier to install the screws in the clamps that held the flex hose from the fill part with the cap to the tank. They were supposed to be installed pointing down, to avoid this very problem.

I worked for a couple of Chevrolet dealers right out of high school. We got service bulletins from all GM car lines. There was a recall on Opels because even in a low-speed collision the windshields would pop out. Turns out that the guys on the line were using grease to aid in installing the windshields, instead of the water-based lube, which would dry out and/or rinse off.

The real issue with fuel leaks was with saddle tanks on our trucks. That was also overblown. Yes, they could leak if hit. But they didn't burst into flame like that Pinto in the "Top Secret" movie.
__________________
~Steven

'70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper

Simi Valley, CA
Steeveedee is offline   Reply With Quote
Old 08-20-2024, 02:25 AM   #9
Rufas
Registered User
 
Rufas's Avatar
 
Join Date: May 2016
Location: Fort Mohave, AZ
Posts: 368
Re: Gas tank in the cabin - safety

Back in the early 90's NBC faked a segment on exploding gas tanks in GM pickups involved in accidents.

Exploding Chevy Pickups And NBC Coverup
__________________
1970 GMC 2500
700R Trans, RideTech 4 link rear suspension, air bagged on all four corners, factory upper/lower A-Arms, 2 inch drop spindles.
350 SBC 300hp
Weiand Supercharger
FiTech 30004 EFI
Rufas is offline   Reply With Quote
Old 08-20-2024, 08:19 AM   #10
Stocker
20' Daredevil (Ret)
 
Stocker's Avatar
 
Join Date: May 2003
Location: Jefferson State
Posts: 13,688
Re: Gas tank in the cabin - safety

Quote:
Originally Posted by Rufas View Post
Back in the early 90's NBC faked a segment on exploding gas tanks in GM pickups involved in accidents.

Exploding Chevy Pickups And NBC Coverup
Yep. I had forgotten about that. Thanks for the reminder. Fake (or at least altered) news has been around a long time.
__________________
- Mike -

1972 K20 LWB 350/350/205

RIP El Jay
Stocker is offline   Reply With Quote
Old 08-20-2024, 12:49 PM   #11
71CHEVYSHORTBED402
Senior Member
 
71CHEVYSHORTBED402's Avatar
 
Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,290
Re: Gas tank in the cabin - safety

If they're leaking vapor or worse it stinks, and I don't know that I'd smoke a cig under those conditions Other than that no concerns to speak of. I drive my truck so carefully anyway, enough I generally refuse the seatbelt, figuring if I mess up I'm going down with the

Quote:
Originally Posted by Steeveedee View Post
It wasn't actually a design flaw with the Pinto. It was just easier to install the screws in the clamps that held the flex hose from the fill part with the cap to the tank. They were supposed to be installed pointing down, to avoid this very problem.

I worked for a couple of Chevrolet dealers right out of high school. We got service bulletins from all GM car lines. There was a recall on Opels because even in a low-speed collision the windshields would pop out. Turns out that the guys on the line were using grease to aid in installing the windshields, instead of the water-based lube, which would dry out and/or rinse off.

The real issue with fuel leaks was with saddle tanks on our trucks. That was also overblown. Yes, they could leak if hit. But they didn't burst into flame like that Pinto in the "Top Secret" movie.
Interesting, not surprising.
__________________
Tony
71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assembly kit for restoring the (a) truck from the ground up. My build thread, and more on the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025
71CHEVYSHORTBED402 is offline   Reply With Quote
Old 08-20-2024, 12:52 PM   #12
1970cstblazer
All stock and staying that way
 
1970cstblazer's Avatar
 
Join Date: Jul 2003
Location: Elkland, PA
Posts: 1,652
Exclamation Re: Gas tank in the cabin - safety

Much rather have the in cab tank versus the vulnerable side saddle bombs on the 1973-91 GM trucks
__________________
1970 K/5 Blazer CST 4WD, Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion..

1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor...

2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2...

2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels
1970cstblazer is online now   Reply With Quote
Old 08-20-2024, 01:23 PM   #13
697498chevy
Registered User
 
Join Date: Jan 2009
Location: South Carolina
Posts: 265
Re: Gas tank in the cabin - safety

Kinda off topic , but if IRR I got a $1,000 rebate on a new GM vehicle because I owned a 74 chevy truck with gas tank issues .
697498chevy is offline   Reply With Quote
Old 08-20-2024, 01:43 PM   #14
54blackhornet
Registered User
 
54blackhornet's Avatar
 
Join Date: Jul 2008
Location: Eastern Oregon
Posts: 2,377
Re: Gas tank in the cabin - safety

Why not research how many people have died in these trucks before worrying about it ? You have a much better chance of dying walking across the street.
__________________
71 C-20
07 Magnum RT AWD
54blackhornet is offline   Reply With Quote
Old 08-20-2024, 03:46 PM   #15
desert-rat
Registered User
 
Join Date: Jan 2013
Location: 3,018 feet above the SoCal/Mojave Desert region.
Posts: 371
Re: Gas tank in the cabin - safety

People smoked more too back when. I was going to relocate a new tank under the bed, but decided to keep the original in the cab. I have no worries.
desert-rat is offline   Reply With Quote
Old 08-21-2024, 12:07 AM   #16
Richard
Senior Member
 
Join Date: Dec 1999
Location: Southern California
Posts: 2,852
Re: Gas tank in the cabin - safety

Rolled a 72 when I was 16. Was knocked out cold being flung around the cab. Woke up hanging upside down suspended by the lap belt. Gas was dripping and puddling on the roof. Obviously nothing ignited it or I would be dead. Yes, I was young and driving recklessly. Want to test the suspension on current truck in Barstow to see how fast I can get up to trough the whoops. None the less I never want the possibility be in that situation again. I moved the tank in my current 72.
__________________
Richard
1972 K10 Custom Deluxe SWB Fleetside
My build https://67-72chevytrucks.com/vboard/...d.php?t=800746
Richard is offline   Reply With Quote
Old 08-21-2024, 12:46 AM   #17
1970 CST Short Wide
Senior Moment
 
1970 CST Short Wide's Avatar
 
Join Date: Mar 2002
Location: Pittsburg Ca
Posts: 4,169
Re: Gas tank in the cabin - safety

I relocated my tank to the rear when I went LS. It was easer ,for me, to do the in tank pump that I wanted Plus more weight in the Rear. I’ve had this truck for 34 years, have Never been concerned about Safety when the tank Was in the Cab.
Now that this question Has come up I’m thinking it’s probably Safer in the Cab in a Rear end collision. I’m hoping I never find out
__________________
1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN
2013 GMC PU, Oldest Son
71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son
2019 GMC Diesil Dually. Youngest Son
2017 Toyota SUV Daughters car
2018 Traverse , Wife’s Ride
Pittsburg Ca
94565
1970 CST Short Wide is online now   Reply With Quote
Old 08-21-2024, 01:26 AM   #18
67 twins
Senior Member
 
Join Date: Mar 2019
Location: Herculaneum MO (20 minutes south of St. Louis
Posts: 641
Re: Gas tank in the cabin - safety

Quote:
Originally Posted by 1970cstblazer View Post
Much rather have the in cab tank versus the vulnerable side saddle bombs on the 1973-91 GM trucks
As already noted above that **** was faked.
__________________
67 C10 283 T5 swapped longbed fleetside = wife's daily driver
67 C20 292 (originally a 250)4speed longbed fleetside w/original wooden bed=my project truck
67 C10 283+.060 (so a 292 as well)T5 swapped longbed fleetside=my DD
72 C1500 Sierra Grande 350 TH350 longbed fleetside=wife's fair weather truck
Can you tell we are fans of longbed fleetsides & 67s
Chris
67 twins is offline   Reply With Quote
Old 08-21-2024, 01:31 AM   #19
67 twins
Senior Member
 
Join Date: Mar 2019
Location: Herculaneum MO (20 minutes south of St. Louis
Posts: 641
Re: Gas tank in the cabin - safety

Quote:
Originally Posted by 697498chevy View Post
Kinda off topic , but if IRR I got a $1,000 rebate on a new GM vehicle because I owned a 74 chevy truck with gas tank issues .
As I recall it was $1500 & utterly worthless to me. Couldn't afford a new truck & wouldn't have bought one if I could. As ALWAYS the lawyers were the only ones to get anything in the end.
__________________
67 C10 283 T5 swapped longbed fleetside = wife's daily driver
67 C20 292 (originally a 250)4speed longbed fleetside w/original wooden bed=my project truck
67 C10 283+.060 (so a 292 as well)T5 swapped longbed fleetside=my DD
72 C1500 Sierra Grande 350 TH350 longbed fleetside=wife's fair weather truck
Can you tell we are fans of longbed fleetsides & 67s
Chris
67 twins is offline   Reply With Quote
Old 08-21-2024, 03:44 PM   #20
typerr
Registered User
 
Join Date: May 2019
Location: Lakewood
Posts: 83
Re: Gas tank in the cabin - safety

The reason you no longer see fuel tanks mounted in the passenger compartment of vehicles is in the event the filler hose gets torn off in a crash you could have fuel released into the cabin. On our trucks it is certainly conceivable that if one were side swiped the filler could be ripped off. Whether or not that would start a fire is for Mythbusters.
typerr is offline   Reply With Quote
Old 08-21-2024, 05:23 PM   #21
1970cstblazer
All stock and staying that way
 
1970cstblazer's Avatar
 
Join Date: Jul 2003
Location: Elkland, PA
Posts: 1,652
Exclamation Re: Gas tank in the cabin - safety

Quote:
Originally Posted by 67 twins View Post
As already noted above that **** was faked.
Yes, the NBC Dateline episode was massaged to have a predictable outcome.

What hasn't been faked is that an estimate of around 800 individuals that have been purportedly killed in these trucks due to fire in a side impact collision since 1972. What also has not been faked is that over the years GM has paid out around 500 million dollars to the victims' families.

To blindly believe that the side saddle fuel tank design is even remotely safe is ridiculous.
__________________
1970 K/5 Blazer CST 4WD, Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion..

1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor...

2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2...

2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels
1970cstblazer is online now   Reply With Quote
Old 08-21-2024, 06:56 PM   #22
Accelo
Senior Member
 
Accelo's Avatar
 
Join Date: Mar 2015
Location: washington
Posts: 2,280
Re: Gas tank in the cabin - safety

I always thought that if the truck rolled on the driver's side and slid down the highway, it would be disastrous. I have been driving the 1967-72 trucks since I received my license and never observed a fire in one.
That said, I moved my tank to the back for "safety", the weight transfer and I didn't want to listen to a noisy fuel pump with an LS conversion.
I weighed my axles and 2300 on the front and 1700 on the rear for a total of 4000 lbs with fuel and me in it.
Accelo is offline   Reply With Quote
Old 08-21-2024, 10:07 PM   #23
Getter-Done
Senior Member
 
Getter-Done's Avatar
 
Join Date: Dec 2009
Location: TN.
Posts: 8,300
Re: Gas tank in the cabin - safety

Quote:
Originally Posted by Accelo View Post
I weighed my axles and 2300 on the front and 1700 on the rear for a total of 4000 lbs. with fuel and me in it.

What time were you on the scales,

Before or after Lunch?.

That would make a Big difference with me.
__________________
________________________________________________________________________________________
____________________________________________
84 Chevy K-20
63 Impala (my high school car)


http://67-72chevytrucks.com/vboard/s...Crew Cab Build
Getter-Done is offline   Reply With Quote
Old 08-22-2024, 03:49 AM   #24
67 twins
Senior Member
 
Join Date: Mar 2019
Location: Herculaneum MO (20 minutes south of St. Louis
Posts: 641
Re: Gas tank in the cabin - safety

Quote:
Originally Posted by 1970cstblazer View Post
Yes, the NBC Dateline episode was massaged to have a predictable outcome.

What hasn't been faked is that an estimate of around 800 individuals that have been purportedly killed in these trucks due to fire in a side impact collision since 1972. What also has not been faked is that over the years GM has paid out around 500 million dollars to the victims' families.

To blindly believe that the side saddle fuel tank design is even remotely safe is ridiculous.
Yes they are in fact remotely safe. Although 800 deaths may be tragic contrast that against the millions of those truck sold, driven god knows how many billions, trillions? Of miles puts it in perspective. If they were anyway near as dangerous as you want to make them out to be the insurance industry would have made them prohibitively expensive to insure. That has never been the case. I'd be willing to bet the actual fire risk is about average. Anyway I know it is so damn low I'm not going to worry about it. I'm way more likely to die of something else.
__________________
67 C10 283 T5 swapped longbed fleetside = wife's daily driver
67 C20 292 (originally a 250)4speed longbed fleetside w/original wooden bed=my project truck
67 C10 283+.060 (so a 292 as well)T5 swapped longbed fleetside=my DD
72 C1500 Sierra Grande 350 TH350 longbed fleetside=wife's fair weather truck
Can you tell we are fans of longbed fleetsides & 67s
Chris
67 twins is offline   Reply With Quote
Old 08-22-2024, 06:33 AM   #25
franken
Registered User
 
Join Date: Jun 2013
Location: Somewhere
Posts: 3,100
Re: Gas tank in the cabin - safety

If we think about the 73-91 record of the squares we may want to think they were pretty safe. Similarly, gas tanks were in the cab for about 50 years until 72. Hmm.
franken is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 11:32 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com