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rear gas tank

Discussion in 'Early CJ5 and CJ6 Tech' started by Rozcoking23, Nov 4, 2010.

  1. Nov 4, 2010
    Rozcoking23

    Rozcoking23 RUN & GET BIT!

    Stockton, CA
    Joined:
    Mar 29, 2008
    Messages:
    412
    I have a 1970 CJ5 that came only with the under seat tank. I'm looking into adding a second tank in the stock rear location for the 1970 1/2 to 1971 models. I can find the tank and and sending unit and filer hoses, but I cant seem to find a skid plate for the 1970 1/2 to 1971. Does anyone have a source for the skid plate, and what years will fit?
    Thanks for your help, Rob
     
  2. Nov 4, 2010
    Junkyard Jim

    Junkyard Jim New Member

    Central Coast, CA
    Joined:
    Sep 22, 2010
    Messages:
    21
    I see you are in Stockton. I would take some measurements and call or go by J & W auto salvage in Sacramento. They specialize in jeeps and have a yard full of stuff. Someone may come on and give you a year and model, but I've been in their yard and there is lots of modded jeeps with stuff waiting to be picked off.

    Good luck in your search.
     
  3. Nov 4, 2010
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    Sep 23, 2002
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    11,523
  4. Nov 4, 2010
    Rozcoking23

    Rozcoking23 RUN & GET BIT!

    Stockton, CA
    Joined:
    Mar 29, 2008
    Messages:
    412
    Thanks for the response, If I get the chance I'll go check out bone yards this weekend. Anyone have an idea what year will fit or is close?
     
  5. Nov 4, 2010
    double R

    double R Member

    Reseda, CA
    Joined:
    Mar 18, 2003
    Messages:
    332
    I'm using '78 gas tank and skidplate on mine. I have the skidplate bolted on the crossmembers. The rear crossmember has been replaced with a 2x4 tubing. The lip/seam around the gas tank had to be bent to fit between the frame rails. Depending on the size of your shackles, keep them in mind as they might interfere with the tank/skid...
    [​IMG]
    [​IMG]
     
    Last edited: Nov 4, 2010
  6. Nov 4, 2010
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
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    4,915
    The rear tank was the same from 70-75.
     
  7. Nov 5, 2010
    grannyscj

    grannyscj Headed to the Yukon

    Anchorage, AK
    Joined:
    Dec 19, 2005
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    1,756
    Actually, they are all the same (15 gal) up through the end of the YJs at least. Only the fill and vent are different between models. With an underseat tank you have your choice on where you put the fill because there's no cutouts yet. I went w/ a '76-'83 tank because the hardware for the fill and vent is available aftermarket. Unless something has changed you can't buy the '72-'75 hardware new. The '76-'83 skid plates will work too, however, it is thin material and as simple as it is to make a nice 1/4" plate you should do that (if you weld) or have someone weld it for you.

    I'm not sure the reasons behind the previous post about bending the seams, but that was not necessary in the least on my conversion.
    [​IMG]
    [​IMG]
    [​IMG]
     
  8. Nov 5, 2010
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
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    4,915
    Sorry to correct you, but no the tanks from 76 on are not the same as the 70-75 tanks. I have had them side by side, they are similar but there are alot of minor differences. If you take a 72-75 tank they bolt directly in to a 70-71 without the frame braces perfectly. The others will require mods and hardware.

    The tank in my 71
    [​IMG]

    [​IMG]
     
  9. Nov 5, 2010
    grannyscj

    grannyscj Headed to the Yukon

    Anchorage, AK
    Joined:
    Dec 19, 2005
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    1,756
    That may have been true originally but no more. I had a long conversation w/ the folks I bought mine from. Talked the guy into putting the tanks side by side and comparison showed no difference in the tanks themselves. The differences came in the fill and vent, thats all. Before that I had spoke w/ a sales person from Quadratec and while he didn't do a comparison he said the same thing. Looking at your tank, my '76-'83 tank mounted the same way. I bolted it directly to the rear x-member and used L shaped hangers in the front. I suppose I could have used straps like the original '76 tank but why? It mounted just fine the way I did it.:v6:
     
  10. Nov 5, 2010
    pilebuck

    pilebuck Member

    western WA.
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    Apr 28, 2008
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    239
    with thattank when you put the tub on how do you get to the top of the tank if you need to?
     
  11. Nov 5, 2010
    Mr. Gangrene Jeans

    Mr. Gangrene Jeans I See Voices&Hear Visions

    Kansas City
    Joined:
    Jul 17, 2009
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    282
    My 1969 DJ5a Postal Jeep came with a rear tank from the factory. It is smaller than those pictured, maybe 10 gallons. It did not come with a skid plate as it is 2wd. The fill tube was on the passenger rear without a vent tube.
     
  12. Nov 5, 2010
    grannyscj

    grannyscj Headed to the Yukon

    Anchorage, AK
    Joined:
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    1,756
    4 bolts and it drops out the bottom. I had fuel gauge issues and did it to check the ground on the sender and to cycle the float.:v6:
     
  13. Nov 5, 2010
    Rozcoking23

    Rozcoking23 RUN & GET BIT!

    Stockton, CA
    Joined:
    Mar 29, 2008
    Messages:
    412
    Thanks for the info and pics. Do you have any pics from the bottom, and the how your mounts are set up?
     
  14. Nov 5, 2010
    pilebuck

    pilebuck Member

    western WA.
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    Apr 28, 2008
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    239
    right on easy enough looks good:)
     

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