Saddle tank as main tank - The 1947 - Present Chevrolet & GMC Truck Message Board Network

C10randy · 01-05-2014, 08:05 PM

Hey guys... First post so be nice

!
Here's my question. I have a 72 1/2 ton. It came with 2 saddle tanks as well as the behind the seat stinker tank... I removed passenger side tank and removed the under the seat switch. I joined the driver side saddle tank hose directly to the hose going to fuel pump. Truck runs fine and doesn't seem to leak or have any issues. My concern is the saddle tank has no vent lines that I can see. I assume the gas cap must be a venting type?
Is this a safe set up besides the accidental side impact blowing me up?

Want to pull the behind the seat tank ASAP but don't want to screw myself if you guys see potential problems?

chevy_mike · 01-06-2014, 02:58 PM

Yep, works fine. It should be using a vented cap, so no vent on the tank needed. I did my old '68 (not the current one listed) this way and ran on the driver saddle tank. Removed the inside one and filled the hole in the cab.

67 chevelle · 01-06-2014, 03:47 PM

did that on mine , removed the interior tank that is , made room for an amp and sub , and no fumes

Coley · 01-06-2014, 05:05 PM

...well, if everything is in good shape you shouldn't have any fumes in the cab.
That said.....I love the smell of a few gas fumes

....important part of the ride for me!

Coley

C10randy · 01-06-2014, 06:12 PM

Thanks guys.... Safety first when dealing with gas!

**Stocker** · 01-06-2014, 10:21 PM

The only problem I can think of is that single saddle tank probably isn't very big. My twin saddles hold about 15 gallons each.

C10randy · 01-06-2014, 10:30 PM

Well Im losing a gallon Stocker..... Behind the Seat was I think a 15 and my saddle is a 14..... She dont get driven to much for that to matter...

71K20chevy · 01-06-2014, 11:10 PM

Personally, if it were me, I'd rather have the in cab tank rather than the saddle tank. Reason for that is because the in cab tank has a small surface area to be hit in a side collision, whereas the saddle tank the whole thing is basically right there. Not to mention the in cab tank would be sitting up a little higher.

Obviously, the best way to do this would be like the newer trucks that have a tank inside the frame rails. But newer trucks have wider frames, so on our trucks it's pretty much impossible. Although I have heard people fitting older F#rd Ranger tanks in our frames.

Just my 2c.

01-05-2014, 08:05 PM	#1
C10randy Registered User Join Date: Dec 2013 Location: Jackson Ca Posts: 6	Saddle tank as main tank Hey guys... First post so be nice! Here's my question. I have a 72 1/2 ton. It came with 2 saddle tanks as well as the behind the seat stinker tank... I removed passenger side tank and removed the under the seat switch. I joined the driver side saddle tank hose directly to the hose going to fuel pump. Truck runs fine and doesn't seem to leak or have any issues. My concern is the saddle tank has no vent lines that I can see. I assume the gas cap must be a venting type? Is this a safe set up besides the accidental side impact blowing me up? Want to pull the behind the seat tank ASAP but don't want to screw myself if you guys see potential problems?

01-06-2014, 02:58 PM	#2
chevy_mike Never Ending Projects Join Date: Jul 2006 Location: San Diego, CA Posts: 3,836	Re: Saddle tank as main tank Yep, works fine. It should be using a vented cap, so no vent on the tank needed. I did my old '68 (not the current one listed) this way and ran on the driver saddle tank. Removed the inside one and filled the hole in the cab. __________________ . 1965 C10 Panel, Tiki Express http://www.67-72chevytrucks.com/vboa...d.php?t=506580 SOLD 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often...

01-06-2014, 03:47 PM	#3
67 chevelle Registered User Join Date: May 2013 Location: WEST PALM FLORIDA Posts: 1,174	Re: Saddle tank as main tank did that on mine , removed the interior tank that is , made room for an amp and sub , and no fumes __________________ 68 Long Fleet , ly6 , turbo 350 , 3-5 drop , original paint , front discs 67 Small window , 7 foot bed , tweaked 6.0 LSX 2004R Medium Olive 58 Apache fleet , 235 , offy intake , dual exhaust , 4 on the floor , red/white 69 Long Fleet , Custom , 6.0, 4l60 , AC , Medium Olive

01-06-2014, 05:05 PM	#4
Coley Registered User Join Date: Oct 2011 Location: Victoria, B.C Posts: 3,794	Re: Saddle tank as main tank ...well, if everything is in good shape you shouldn't have any fumes in the cab. That said.....I love the smell of a few gas fumes....important part of the ride for me! Coley __________________ ....for some men, there is experience, skill and effort....for the others...there is visa and UPS LOL 1966 Chevy 1/2 ton (Florida- Red/white) 1972 Chevy 1/2 ton (California- Blue/white) 2005 Chevy Silverado HD2500/Duramax 2000 Dodge Ram 1500

01-06-2014, 06:12 PM	#5
C10randy Registered User Join Date: Dec 2013 Location: Jackson Ca Posts: 6	Re: Saddle tank as main tank Thanks guys.... Safety first when dealing with gas!

01-06-2014, 10:21 PM	#6
Stocker 20' Daredevil (Ret) Join Date: May 2003 Location: Jefferson State Posts: 13,698	Re: Saddle tank as main tank The only problem I can think of is that single saddle tank probably isn't very big. My twin saddles hold about 15 gallons each. __________________ - Mike - 1972 K20 LWB 350/350/205 RIP El Jay

01-06-2014, 10:30 PM	#7
C10randy Registered User Join Date: Dec 2013 Location: Jackson Ca Posts: 6	Re: Saddle tank as main tank Well Im losing a gallon Stocker..... Behind the Seat was I think a 15 and my saddle is a 14..... She dont get driven to much for that to matter...

01-06-2014, 11:10 PM	#8
71K20chevy Registered User Join Date: Jul 2012 Location: Ft Wayne Indiana Posts: 1,204	Re: Saddle tank as main tank Personally, if it were me, I'd rather have the in cab tank rather than the saddle tank. Reason for that is because the in cab tank has a small surface area to be hit in a side collision, whereas the saddle tank the whole thing is basically right there. Not to mention the in cab tank would be sitting up a little higher. Obviously, the best way to do this would be like the newer trucks that have a tank inside the frame rails. But newer trucks have wider frames, so on our trucks it's pretty much impossible. Although I have heard people fitting older F#rd Ranger tanks in our frames. Just my 2c. __________________ 71 K20 64 GMC mud truck



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