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1955-59 gas tanks 21.5 and 17.5 gallon #1321667 Tue Aug 13 2019 02:58 AM
Joined: Mar 2004
Posts: 3,812
M
Mike B Offline OP
Shop Shark
Here's a couple pictures of the 21.5 gallon tank (available in the big trucks only) with measurements next to the 17.5 gallon tank.

Note, the filler neck on the 21.5 is different than the 17.5 neck and as would be expected the hold down straps are longer.

Both tanks are 52" long. The 21.5 is 14" tall, the 17.5 is 11" tall.

Mike B smile

Attached Files
IMG_20190812_191541995.jpg (159.14 KB, 83 downloads)
IMG_20190812_191623825.jpg (1.11 MB, 81 downloads)
IMG_20190812_191715719.jpg (1.1 MB, 79 downloads)
IMG_20190812_191749968.jpg (1.15 MB, 79 downloads)
Last edited by Mike B; Tue Aug 13 2019 03:05 AM. Reason: added measurements
Re: 1955-59 gas tanks 21.5 and 17.5 gallon [Re: Mike B] #1321704 Tue Aug 13 2019 01:43 PM
Joined: Jun 2011
Posts: 2,767
E
EdPruss Offline
Shop Shark
Mike, thanks, I'll look for one.

Ed


'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
Re: 1955-59 gas tanks 21.5 and 17.5 gallon [Re: Mike B] #1321733 Tue Aug 13 2019 05:36 PM
Joined: Jul 2018
Posts: 56
P
Possum Online
Wrench Fetcher
Thanks for the pics. My Spartan is missing its tank, I assume it was the 21.5 gallon one.


A 27 year old with a soft spot for old trucks!
1949 Chevy 3100
1955.5 Chevy 3100
1958 Chevy 3800 1-ton w/ 9 foot bed
1959 Chevy Spartan 100 winch truck
and various other future projects
Re: 1955-59 gas tanks 21.5 and 17.5 gallon [Re: Mike B] #1321736 Tue Aug 13 2019 06:05 PM
Joined: Sep 2011
Posts: 517
B
BC59 Offline
Shop Shark
Thanks Mike, parted out a '59 C60 a few years back, need to shed a few parts that are taking up space, now I'll now how big a tank this one is.


BC
1960 Chevy C10 driver
1949 GMC 250 project in waiting
G.M dealer tech since 1980 & counting
Re: 1955-59 gas tanks 21.5 and 17.5 gallon [Re: Mike B] #1321763 Wed Aug 14 2019 12:27 AM
Joined: Mar 2004
Posts: 3,812
M
Mike B Offline OP
Shop Shark
The 17.5 gallon tank was standard issue on all 3000 thru 6000 Series Chevrolet Cab trucks.

The 21.5 gallon tank was standard issue on the 7000 Series and up Chevrolet Cab trucks.

Mike B smile

Re: 1955-59 gas tanks 21.5 and 17.5 gallon [Re: Mike B] #1321876 Wed Aug 14 2019 08:12 PM
Joined: Feb 2001
Posts: 6,450
W
WE b OLD Offline
Master Gabster
Auto Zone carries gas tanks but you will have to know the year you want.


Ron, The Computer Greek
I love therefore I am.

1960 MGA Roadster Sold 7/18/2017
1954 3100 Chevy truck in the Gallery
2017 Buick Encore
Pix on Photobucket
Re: 1955-59 gas tanks 21.5 and 17.5 gallon [Re: WE b OLD] #1321884 Wed Aug 14 2019 08:37 PM
Joined: Mar 2004
Posts: 3,812
M
Mike B Offline OP
Shop Shark
Originally Posted by WE b OLD
Auto Zone carries gas tanks but you will have to know the year you want.


Yes, they carry the Spectra 18 gallon tank (17.5 gal replacement?), but I don't think the have the 21.5 gallon tank for the 55-59 Chevrolet big trucks.

Mike B smile


Moderated by  69Cuda, Grigg 

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