40 gallon suburban tank in reg cab ?

[bucket]

I wanted to put a 40 gallon Burb tank in my crew cab, but the dual exhaust has been ran right through there, and the rear shocks have also been relocated to that area. I guess I'm stuck with the saddle tanks.

And IIRC, the 30 gallon and 40 gallon tanks are the same depth, but the 40 gallon tank is longer.

 

[HotRodPC]

with the saddle tanks, and the NBC tests where they "exploded"... Dateline had to rig the tanks with an ignitor in order to get them to explode... the saddle tank scare was totally fabricated.

http://whatreallyhappened.com/RANCHO/LIE/nbc.html

That is great friggin info. I'll set this info up as a Sticky somewhere on the forum. Every SB owner needs to know this. Granted, I am sure with the scenario just right, there is some danger, but that "just right scenario" can go for just about any vehicle. Now for a fact, one bomb that was real as hell, was the Ford Pinto. Ford Pintos would exlpode on impact from a rear end collision. They didn't need a just right scenario.

 

[GreaseDog]

something that puzzles me would be the spring sag with a full 40 gallon tank. Not sure how much that would weigh but you would also have to consider the leverage factor of it hanging behind the axle. Yea you would pick up added traction to the rear wheels but what about the front steer axle what kind of effect do you think it would have on that? Suburbans are longer then a RCLB truck so i could see the extra length of the suburban helping with the leverage. Any thoughts?

suburbans are 2" shorter in wheelbase, and appear to have a longer overhang. i can't find specs on a LWB pickup, but the Burb is 219".

Burbs and Blazers/Jimmys are also known for sagging rear ends, which could likely be caused by the positioning of the fuel tank.

 

[GreaseDog]

ok so 247 lb's hanging behind the axle would translate to about what? 300 lb's?

off of the front axle/suspension? due to the length of the frame, i would say its well under 100# difference. remember, the entire frame is acting as a lever, with the fulcrum being the rear axle.

 

[GreaseDog]

That is great friggin info. I'll set this info up as a Sticky somewhere on the forum. Every SB owner needs to know this. Granted, I am sure with the scenario just right, there is some danger, but that "just right scenario" can go for just about any vehicle. Now for a fact, one bomb that was real as hell, was the Ford Pinto. Ford Pintos would exlpode on impact from a rear end collision. They didn't need a just right scenario.

its amazing how many people are scared of saddle tanks, but have no problem sitting directly on top of a fuel tank in a pre-73 truck.

 

[RetroC10Sport]

RCLB = WB: 131.5" Overall length: 210.8" Rear overhang: 45.5"
Burb: = WB: 129.5" Overall length: 219.1" Rear overhang: 55.8"

 

[HotRodPC]

its amazing how many people are scared of saddle tanks, but have no problem sitting directly on top of a fuel tank in a pre-73 truck.

hahaha, No doubt. Crusin down the freeway at 70 smoking a cigarette with a 16-18 gallon bomb. All it takes is a crack in the rubber fill neck, sloshing around and gas fumes escaping into the cab. The fumes will sure ignite before the liquid gas will, but once the fumes ignite, then so does all the liquid gas. KaBOOM !!! Thankfully what probably has saved many lives, is those older trucks have kick panel vents that don't seal off well, firewall wasn't sealed all that good and air could get into the cab to dilute any fumes.

 

[jake wells]

i got a tank in my bed just a stock 16 gallon mounted against the front of the bed with a L shaped cover over it i got them plumbed into my lines using a 2 way valve i turn located in my floor pan.

i got a 2 way toggle mounted on my dash to control the sending units in either tanks. the filler neck is near the other one on the same side. i got the pre 79 style fillers on my truck big mouth for leaded gas.

not the safest way in the world but i got duel tanks one is 16 and the other is 20 under the bed pm the passenger side.

 

[Irishman999]

hahaha, No doubt. Crusin down the freeway at 70 smoking a cigarette with a 16-18 gallon bomb. All it takes is a crack in the rubber fill neck, sloshing around and gas fumes escaping into the cab. The fumes will sure ignite before the liquid gas will, but once the fumes ignite, then so does all the liquid gas. KaBOOM !!! Thankfully what probably has saved many lives, is those older trucks have kick panel vents that don't seal off well, firewall wasn't sealed all that good and air could get into the cab to dilute any fumes.

Im not a scientist but I think to make conditions right for an explosion to happen that way you would have already passed out from gas fumes.

What I do know, full fuel tanks will not explode. An empty tank with the perfect percentage of fuel vapor could explode.

 

[HotRodPC]

Im not a scientist but I think to make conditions right for an explosion to happen that way you would have already passed out from gas fumes.

What I do know, full fuel tanks will not explode. An empty tank with the perfect percentage of fuel vapor could explode.

So true. Most think a tank full of gas is more dangerous. Not so. An empty tank full of fumes is much more volitile than a tank of liquid gas.

 

[HotRodPC]

i got a tank in my bed just a stock 16 gallon mounted against the front of the bed with a L shaped cover over it i got them plumbed into my lines using a 2 way valve i turn located in my floor pan.

i got a 2 way toggle mounted on my dash to control the sending units in either tanks. the filler neck is near the other one on the same side. i got the pre 79 style fillers on my truck big mouth for leaded gas.

not the safest way in the world but i got duel tanks one is 16 and the other is 20 under the bed pm the passenger side.

Sounds like a REDNECK git up If I ever heard of one. I have a set of 16 gallon tanks too. My intent for those was for a race truck. I'd keep my driver fuel in one tank, and race fuel in the other. At the track switch tanks.

 

[oneluckypops]

suburbans are 2" shorter in wheelbase, and appear to have a longer overhang. i can't find specs on a LWB pickup, but the Burb is 219".

Burbs and Blazers/Jimmys are also known for sagging rear ends, which could likely be caused by the positioning of the fuel tank.

I didnt realize the burbs were shorter thanks for the heads up.

off of the front axle/suspension? due to the length of the frame, i would say its well under 100# difference. remember, the entire frame is acting as a lever, with the fulcrum being the rear axle.

I am looking at it like this. An 8400 john deer tractors front weights weigh 100#'s but with as far forward of the front axle they are it actually translates to 130#'s of leverage over the axle.

 

[HotRodPC]

RCLB = WB: 131.5" Overall length: 210.8" Rear overhang: 45.5"
Burb: = WB: 129.5" Overall length: 219.1" Rear overhang: 55.8"

Sounds like a REDNECK git up If I ever heard of one. I have a set of 16 gallon tanks too. My intent for those was for a race truck. I'd keep my driver fuel in one tank, and race fuel in the other. At the track switch tanks.

I didnt realize the burbs were shorter thanks for the heads up.



I am looking at it like this. An 8400 john deer tractors front weights weigh 100#'s but with as far forward of the front axle they are it actually translates to 130#'s of leverage over the axle.

Retro already posted the specs. Burb isn't shorter, just has a shorter wheelbase with more overhang. Kinda why they have a tendancy to sag in the ass end.

 

[oneluckypops]

RCLB = WB: 131.5" Overall length: 210.8" Rear overhang: 45.5"
Burb: = WB: 129.5" Overall length: 219.1" Rear overhang: 55.8"

Retro already posted the specs. Burb isn't shorter, just has a shorter wheelbase with more overhang. Kinda why they have a tendancy to sag in the ass end.

I c grasshopper i missed his post earlier

 

[GreaseDog]

hahaha, No doubt. Crusin down the freeway at 70 smoking a cigarette with a 16-18 gallon bomb. All it takes is a crack in the rubber fill neck, sloshing around and gas fumes escaping into the cab. The fumes will sure ignite before the liquid gas will, but once the fumes ignite, then so does all the liquid gas. KaBOOM !!! Thankfully what probably has saved many lives, is those older trucks have kick panel vents that don't seal off well, firewall wasn't sealed all that good and air could get into the cab to dilute any fumes.

liquid gasoline is not flamable