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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Fuel Tank Compatability

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Old Sep 27, 2003 | 12:35 PM
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Fuel Tank Compatability

I have a '72 F100 with the in cab fuel tank. I would like to replace the in cab tank to a frame mounted one. I have access to a fuel tank from a '77 F100. Will this be a direct swap or will it require major modifications?
 
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Old Sep 27, 2003 | 02:07 PM
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From: Brea CA
Won't fit. The frame is wider in the rear on the '73 and later trucks and the tank will be too wide to fit between the frame rails.

Barry
 
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Old Sep 27, 2003 | 05:40 PM
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rrawlins
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From: Bearspaw (near Calgary)
I adapted a rear frame tank off a 76 ford to fit my 69 4x4. All it took was a couple of pieces of angle iron. However the tank does hang below the frame rails. Clearance was not a problem on my 4x4 but it might be a problem on a 4x2. I wanted dual tanks so i kept my in cab tank too. I also pulled all of the fuel lines and dual tank selector wiring from the donor truck. There was a difference in the size of the metal fuel lines so I had to do a little fabricating there as well. If you can pre fit the tank before you purchase it you might find it'll work for you.
 
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