Rear fuel tank

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mbuchman
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Rear fuel tank

Postby mbuchman » Sun Jun 29, 2008 11:11 am

Has anyone done this on a 4X4? I only ask because LMC lists it as 2wd only. Looking to gain some space in the cab... I am 7 feet tall. I have a 72 F100 LWB 4X4 360 C6. Any info would be greatly appreciated. :D

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sideoilerfe
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re: Rear fuel tank

Postby sideoilerfe » Sun Jul 20, 2008 2:03 am

There was no optional aux tank on the F250 4x4's due to the location of the transfer case. I don't remember on the F100 but I think You would have to ad a saddle tank or fabricate one inside the frame rail somewhere. You could put one inside the bed as well. Of course these custom tanks would need to be fabricated for a sending unit as well.
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Postby roblrobl » Sun Jul 20, 2008 10:14 am

I believe the 78-79 Broncos had the narrow frame like the 72 and down. I don't have one here to measure but my brother has a 79.I could maybe get him to measure it.
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averagef250
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Postby averagef250 » Mon Jul 21, 2008 2:05 pm

You can use a rear tank from a dentside highboy or a 73-77 F-350 2wd.

Big broncos are wider in the rear.

I don't see how removing the tank will get you can more legroom. I'm 6'3 and like these trucks because they are one of the few I have enough legroom and knee room to run 3 pedals, but the seat is all the way against the rear cab wall, the tank isn't in the way.
1970 F-250 4x4 original Willock swivel frame chassis '93 5.9 Cummins/Getrag/NP205/HP60/D70

mbuchman
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re: Rear fuel tank

Postby mbuchman » Mon Jul 21, 2008 2:53 pm

Well first issue is I am 7'-0" and actually with the new seats (see interior thread 2002 f150 60/40 swap) I am doing fine for legroom. Now it is more of an issue of comfort for my fiancee and possible storage room. But the biggest thing would be the missus not feeling safe sitting in front of the gas.

:) :oops:


:fr:

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averagef250
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Postby averagef250 » Mon Jul 21, 2008 3:17 pm

I feel pretty safe with the cab tank myself. I've cut up enough of these trucks to see first hand how tough the cab tanks are. You can fork a tank and lift the entire truck without the tank ripping. They are very, tough tanks.

I figure if I get hit hard enough to puncture that tank I'm going to be dead anyway, but I'll save some money on cremation costs. If the truck rolls, the fuel dumps outside, same as any other tank.

I'd much rather have the cab tank over saddle tanks. Those things are way too easy to pop in a wreck.
1970 F-250 4x4 original Willock swivel frame chassis '93 5.9 Cummins/Getrag/NP205/HP60/D70

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Re: Rear fuel tank

Postby jeepermc » Tue Jul 22, 2008 4:37 pm

Didn't some dentside F-100's come with a rear tank under the bed? Frame same??
1952 CJ-3A- 289cid, NP435
1969 F-250 4X4- 410cid, NP435, Dana 24-44-60LS , 4", 36's
1975 F-250-Ranger XLT 4X4- 390cid, NP435, NP205, 44F, 60 rear
1987 Mustang GT
New addition- 1997 F-350 PSD std. cab 4x4

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averagef250
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Re: Rear fuel tank

Postby averagef250 » Wed Jul 23, 2008 1:22 pm

jeepermc wrote:Didn't some dentside F-100's come with a rear tank under the bed? Frame same??


The frames changed in 73, but the only two models that didn't change the rear frame width are the F-250 4x4 from 73-77.5 and the F-350 single and dual and super camper special from 73-77 model year.

If you can find either of those models with a rear tank you can fit it in between bumpside rear frame rails. Good luck though. Only the fanciest optioned 4x4's got the rear tanks and most of the F-350's I've seen have had rust in the rear tank from little use over the years.
1970 F-250 4x4 original Willock swivel frame chassis '93 5.9 Cummins/Getrag/NP205/HP60/D70


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