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Dual Front Fuel Tanks and 1 Fill tube.

Discussion in 'Early CJ5 and CJ6 Tech' started by goofyjumper, Jan 11, 2012.

  1. goofyjumper

    goofyjumper New Member

    I've looked through the forum and seen that the dual tank topic has been well discussed. For suspension reasons, I am exploring the idea of running dual underseat tanks on my pre 71 CJ5 tub. For safety reasons I will probably build an outter shell around each poly tank. I have a rear 15 gallon tank, but it isn't going to work out if I stretch the wheel base. Was wondering if there is a way to plump a fill system so that I don't have to run the jeep up both sides of a fill up island to fill each side.

    Thanks in advance!
     
  2. 66cj5

    66cj5 Jeep with no name

    used to be an aftermarket kit for '73-87 GM trucks with dual tanks (they sat outside the frame) that used a long fill neck to fill the tank on the other side.

    I don't think it would be too much fab work to be able to do such a thing, unless you wanted to be able to fill up from either side (that's how the kit was set up).
     
  3. colojeepguy

    colojeepguy Colorado Springs

    You'd have to have a decent sized hose running from 1 tank to the other, and in this application, that would mean running right across the passenger compartment. That doesn't sound like a very good idea. I think your best bet is just have a filler on both sides & deal with pulling up to both sides of the pump if you want to fill both.
     
  4. nickmil

    nickmil In mothballs.

    Or you could build a tank that extended all the way across the tub under the seats. About a year and a half ago I sold a Parts Jeep that had an aluminum tank like that. Just another option.
     
  5. goofyjumper

    goofyjumper New Member

    I considered one long tank spanning from the driver's to passenger side, but was worried that in off camber situations on a trail that all the fuel would move from one side to the other and leave the pickup high and dry. But I suppose filling up on each side separately isn't an issue for an non-daily driver either.
     
  6. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    The beauty of two tanks is one can be valved so as to be a switched reserve.
     
  7. grannyscj

    grannyscj Headed to the Yukon

    Didn't the M38 (or M38A1) have a dual underseat tank that filled from the driver's side? Might check on G503.
     
  8. Warloch

    Warloch Did you say Flattie??? Staff Member

    That is what baffles are for and in a tank like that you wouldn't want the fuel to slosh at the wrong time with a mostly full tank either.
     
  9. colojeepguy

    colojeepguy Colorado Springs

    M38A1 had the tank in the same place as a CJ under the drivers seat, but it was larger. There was a recessed area that hung down below the seat to accomodate the bigger tank.