Install fuel tank where the exhaust resides

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This is a project I've considered for some time now. Has anyone else looked at or actually done this. The idea is to bend up 4" or 3 1/2" to go outside the frame as near the turbo as possible and run between the frame and body and exit in front of the rear tires. Then install a stock type fuel tank between the driveshaft and frame, locate the filler neck up high in the innerfender liner of the right rear wheel opening.

What do you'll think, doable, crazy, eh?

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"95" 3500, 4WHD, Ext cab. SLT, 5 spd, 4. 10 LSD, Rancho 9000's PacBrake, running boards, Mopar mud flaps, Isspro EGT, 50lb. boost, TST #8, no cat, muff or turbo ring.

 

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Moparguy funny you mention it just talked with a guy about this last night. The project is under way. We have found someone to mandrill bend 4". I am trying to tie in the filler to the exsisting one so you only have to fill from one. I will keep you posted if we make it happen please do the same.

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1996 4x4 3500 4. 10 5spd, Diesel Dynamics stage 2 injectors, #5 TST plate, Pump mods, 16cm2 housing with 4" exhaust, Cummins exhaust brake, US Gear overdrive, Grover air horns, Mag-Hytec cover, and more.

 

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I've been in contact w/Transfer Flow and they will be starting the prototype for a replacement tank in 3-4 weeks. As I find out more info I will pass it along.

Brian

 

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BPINE, how's that old saw go, great minds thinging, alike, or something like that. Good luck. Ronnie

 

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Been busy so I haven't been able to work on the project. Transfer flow will not sell any parts so getting there 2 in 1 fill neck is out. Any one else interested.

 

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It's hay season now and I haven't had much time to do anything but use the truck. However I have found out that (as many have reported) 4" benders are hard to come by. My future nephew-in-law's dad is the plant manager for Ben Pearson Manufacturing, makers of pipe benders like you see at muffler shops. According to the dad, the last bender he knew of in the nation with 4" capacity was in Cal. , but no longer in service.

Most class 8 trucks use stainless flex to make complex bends, while I don't really like the idea of flex pipe to get to the outside of the frame just below the turbo, it seems to work in the working truck world. That's where I am. BPINE, any thoughts on the flex pipe.

On using only the stock fuel inlet. I like that concept a lot, however, I hadn't really considered it an option due to the expected difficulity of getting fuel to gravity feed to the new tank while clearing the driveshaft. But I like the way you're thinking.

 

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A friend of mine has found a 4" mandrel bender here in Fremont CA. I think he has had a system built for his truck but I haven't seen it yet. So if your watching Hung Tran give me a call I want to check it out. I will have my cell on today taking a drive to Auto Mate trailers to meet with the owner to design a new Trailer. Maybe even a Cummins generator.

 

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I'm not sure how relevant this would be, but it is something to keep in mind. If you recall, when phord introduced the new body styles on the F150s, the exaust was in front of the right rear wheel. Ford had to replace many lug nuts & bolts because of this. The lug nuts would rust onto the stud and/or the stud would become brittle and break off. My God-Father had 2 phords with this problem, by 100K he had to have the RR studs, lug nuts, brake drum, & brakes replaced 3 times. Now phord has routed the exhaust out behind the RR wheel. Just a thought, diesels may not be prone to rusting up the wheel assembly, but you may end up with a soot covered wheel.

 

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If you want greater fuel capacity under the truck, AeroTanks of California will replace your stock 35 gallon tank with a 60 gallon for about $550 installed. I am going to have it done when I begin traveling in about two years. You will use your same tank gauge.

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2001 Ram 3500 dually, 4:10, auto, SLT+,anti-spin,custom side paint, Custom pin striping,Advanced Thermal Products Sound Blanket Kit, Smittybar nerf step,Geno's stainless wheel well trim, tonneau cover, air dam, chrome monster tip, mud flaps/chrome tips,pyro-trans-boost gauges, Bosch 275 Injectors, Van Aaken.

 

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I'll show my ignorance about pipe bending here, but...

I was wondering why we can't use the same technology that is used to make milk lines for farms. They have some wonderful stuff done with welded SS. I've seen the same stuff inside factories where they make computer chips, installed by the same welders that work in farms. This stuff is way leak tight and handles stuff far worse than diesel exhaust.

Probably a cost issue??

 

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Well it looks like there has been a little activity since I was last here. IMO I'm not sure I like the AERO tank it's made out of steel (might be a rust issue) and it looks bad (Kinda warped looking). I would also like to even out the weight on each side. As for David's sugestion I entertained that thought while installing a new Applied Materials Epi Centura it would cost a lot but could be done. Oh by the way David we had to take the Centura out and put in a new one, couldn't make it work contamination. All that a side it's kinda nice to see if you can make something new work.