Author Topic: Fuel Tanks  (Read 7384 times)

Offline hrspwr1

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Fuel Tanks
« on: March 07, 2015, 09:20:02 pm »
Hey guys,  I was wondering if anyone could tell me if there is a difference in size between the fuel tanks on a long box versus a short box truck.  I have a 78 1/2 ton, 2WD long box that I am cutting down to a short box and wanted to know if I could use the stock fuel tanks.  I was hoping to not have to go with an aftermarket, (fill through the bed floor), tank.  Any info would be appreciated.

Offline LTZ C20

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Re: Fuel Tanks
« Reply #1 on: March 08, 2015, 01:26:43 am »
Long bed trucks are 20 gallon tanks, short bed trucks are 16 gallon tanks.
LTZ Cheyenne C20

Offline Irish_Alley

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Re: Fuel Tanks
« Reply #2 on: March 08, 2015, 03:53:35 am »
ltz is pretty right as a standard. but in some rare cases there can be a 16 gal in a long wheel base as a auxiliary tank and the main tank would be 20 gal. but all standard wheel bases got the 16 gal
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Offline LTZ C20

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Re: Fuel Tanks
« Reply #3 on: March 08, 2015, 09:01:01 am »
I knew there was something I forgot! Nice Irish. Btw, my long box has dual 20 gallon tanks.
LTZ Cheyenne C20

Offline Irish_Alley

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Re: Fuel Tanks
« Reply #4 on: March 08, 2015, 03:56:34 pm »
so is mine
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When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline hrspwr1

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Re: Fuel Tanks
« Reply #5 on: March 08, 2015, 11:07:42 pm »
Thanks all for the info.  Just didn't look like a lot of room under there between the front of the rear spring mount and the tank once I took the section out of the frame. 

Iv'e got acess to a short bed 4WD truck that I purchased the box off off.  If they are 16 gallon tanks maybe I can get those to use.  No differences between short box 2WD tanks and short box 4WD tanks are there????

Offline LTZ C20

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Re: Fuel Tanks
« Reply #6 on: March 09, 2015, 12:08:02 am »
None that I know of but I won't garuntee that haha.
LTZ Cheyenne C20

Offline rich weyand

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Re: Fuel Tanks
« Reply #7 on: March 09, 2015, 02:20:21 am »
Thanks all for the info.  Just didn't look like a lot of room under there between the front of the rear spring mount and the tank once I took the section out of the frame. 

Iv'e got acess to a short bed 4WD truck that I purchased the box off off.  If they are 16 gallon tanks maybe I can get those to use.  No differences between short box 2WD tanks and short box 4WD tanks are there????

Nope.  No difference.  But there is a difference by year.  Later tanks of both sizes had a larger diameter filler neck opening.
Rich

"Working Girl": 1978 K-10 RCSB 350/TH350/NP203 +2/+3 Tuff Country lift

Offline hrspwr1

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Re: Fuel Tanks
« Reply #8 on: March 09, 2015, 09:16:29 pm »
Thanks again everyone...I'll add tanks to my "to do" list...LOL ;)

Offline hrspwr1

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Re: Fuel Tanks
« Reply #9 on: March 12, 2015, 10:32:48 pm »
Well, no luck on the gas tanks from the donor truck.  Although its a shortbox, its a camper special which I guess meant it came with 20 gallon tanks, (same as mine).  Was thinking of going to a 78 blazer fuel tank, but not sure what "new" issues that will cause for me.  Any input from anyone who has done it??  Thanks in advance.. :-\


Offline Irish_Alley

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Re: Fuel Tanks
« Reply #10 on: March 12, 2015, 11:28:21 pm »
camper special was a long wheel base or standard?
If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

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Offline hrspwr1

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Re: Fuel Tanks
« Reply #11 on: March 13, 2015, 11:17:03 am »
This particular truck is a short wheel base 4X4.  The cab says camper special on it, but it might be a different cab.  The tanks are definately 20 gallon tanks though.

Offline Irish_Alley

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Re: Fuel Tanks
« Reply #12 on: March 13, 2015, 11:06:35 pm »
so a swb can fit 20 gal tanks. so i guess as a norm 16 gal for swb and 20 for a long, but in some situations either size tank can be under any size bed
If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline werewolfx13

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Re: Fuel Tanks
« Reply #13 on: March 25, 2015, 09:45:34 pm »
Was the truck modified to fit those 20 gallon tanks? Its been awhile, but a few years ago I measured my 83 c10 swb to see if 20 gallon tanks could fit, and I'm 91.82% certain the tank would have collided with the front hanger for the rear springs...

As far as the blazer tank goes, the 25 gallon flavor is not a terribly difficult swap to undertake, as I understand it.
Chris
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'76 Chevy k20 LWB 6.5'x8' Flatbed
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Re: Fuel Tanks
« Reply #14 on: March 27, 2015, 08:39:13 pm »
The 20gal tanks won't fit under one as there isn't enough room.  Are you sure they are 20gal tanks?