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I am thinking about replacing my gas tank.

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by 72Blazerod, May 14, 2001.

  1. 72Blazerod

    72Blazerod 1/2 ton status

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    Location:
    Vancouver, British Columbia, Canada
    My gas tank leaks like a siv. Does anybody have any suggestions as to where to get a new gas tank or a fuel cell? And how much do they cost?

    Thanks,

    72Blazerod

    <A target="_blank" HREF=http://72blazerod.coloradok5.com>http://72blazerod.coloradok5.com</A>
     
  2. Burt4x4

    Burt4x4 3/4 ton status

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    A couple yrs ago mine started leaking from rust on the inside out. I replaced mine with a Polyethelane tank. Several places sell these tanks I got mine from http://www.burt4x4.coloradok5.com
     
  3. Steve_Chin

    Steve_Chin 1/2 ton status

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    If you're concerned at all about cruising radius, you can get one of the 37 or 40 gallon tanks that are on the market. I have a 40 gallon (don't know the make, but the thing is huge).
     
  4. MIKE_MN

    MIKE_MN Registered Member

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  5. californiak5

    californiak5 1/2 ton status

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    Re: http://www.mtscompany.com/

    <A target="_blank" HREF=http://www.mtscompany.com/>http://www.mtscompany.com/</A>

    [​IMG] <font color=green>Born to Drive My K5</font color=green> [​IMG]
     
  6. ChadL

    ChadL Registered Member

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    I replaced mine a couple weeks ago, crushed the old one elk hunting. With the 16 gal I couldn't go anywhere wihtout x-tra gas. I used the Northwest Metal Products 37 gal replacement, PH 503-359-4427, Tank model #CBR-1. It was $425 w/shipping to Colorado Springs. This is a very solid tank, comes with new sending unit and straps, bolts right in. If you have a receiver on the truck that may be an issue with any of the larger tanks. If you do this replace all of the rubber fuel lines when the tank is off, I was lossing about 1/4 tank of gas sitting still in the summer. Research the poly tanks and I think you'll go this way. they tend to sag with time decreasing the amount of fuel they hold, I also heard of some weather related probs in extreme climates. Good luck!!
     
  7. Rasberry

    Rasberry 1/2 ton status

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    You can get a plastic 21 gal gas tank from JcWhitney for $134.00. No worrys about rust and it uses your existing hardware to mount.

    Rasberry 71' K/5 Blazer
    http://www.geocities.com/71blazer
     
  8. californiak5

    californiak5 1/2 ton status

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    I heard that some people had problems with NWMP tanks. How did it install? Does it have the steps on the sides that sit against the frame like the OEM tank? What about clearance for the diff.? At full flex would the tank hit the diff. at all? Sorry about all of the questions. This is just hear say from someone else and I want to find out from someone who has one if it was true or not. I would love to have a good BIG tank. Thanks in advance.

    P.S. If you have any pictures could you post them? Or maybe e-mail them to me. kvanhorn@egraph.com

    See Ya,
    Keith

    [​IMG] <font color=green>Born to Drive My K5</font color=green> [​IMG]
     
  9. Steve_Chin

    Steve_Chin 1/2 ton status

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    Keith, I don't have an NWMP tank. I believe it is the Aero 40 gallon tank (someone posted the URL to Aero a while back, see if you can find it in one of the older posts). there is no evidence that the rear end ever hit the tank and the previous owner beat the living snot out of this rig (jumping, sand, mud). The clearance is tight with the T/A products differential girdle I have, but it's pretty open with a stock differential cover. You can see a pic of the diff cover and tank on the Blazer's page at my site: <A target="_blank" HREF=http://www.geocities.com/MotorCity/Downs/1963>http://www.geocities.com/MotorCity/Downs/1963</A>. Just follow the links to the Blazer's page...
     
  10. ChadL

    ChadL Registered Member

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    I have no probs with rear diff clearence. If the tank were mounted to far forward i can see there might be a problem. A guy down the the street from me has had a NWMP tank for two years with no probs.
     
  11. Ryan_B

    Ryan_B Registered Member

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    Hey guys.
    I was going through the same delima a few months ago.
    I think I had a 35 gal. replacement tank when I bought my '72 K/5 It started leaking pretty bad so I got the NWMP 37 gal. tank.

    I took like 7 pictures on my website, and if you scroll down further you can see the gas tank installed and all finished.
    Check out the pics of the gas tank install at:

    http://communities.msn.com/Ryans1972Blazer

    I have no complaints. I have a trailor hitch reciever, and it rubbed just a tiny bit.......I bought some 1/8" rubber sheet and cut it into small strips and sandwiched it in between the gas tank and the few places it was rubbing on the reciever hitch, and causing it to squeak. I'd suggest getting some rubber before you install the tank, so you know there won't be any loud annoying squeaks.
    I'm very happy with the final result. I'd definately reccomend the NWMP 37 gal. tank. Especially over a polyethelyne or rubber tank, considering my exhaust is routed out the back, very close to the gas tank.

    ...Oh yeah, I think the only thing that the 37 gal. gas tank won't work with is a GM 14-bolt rearend with an aftermarket diff cover. Like an offroad unlimited finned diff cover.
    That might be the case with a 12 bolt rear also if you got a huge finned diff cover.
     
  12. dem

    dem Registered Member

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    I have had the NWMP 37 gal. tank for over a year now, I put a good thick coat of rubber undercoating on it and cut up some old thick innertube to prevent it from squeaking also the paint used on tank by NWMP is weak. I have no major complaints. Here is my list of minor complaints but the extended range makes up for it:
    -Takes a little away in terms of rear clearance but the 16 gauge steel has held up well when occasional rock comes in contact.
    -Installation was a little tricky not due to tightness but due to poor installation hardware provided (I've got a custom hitch and there was a little room to spare). I felt the tank straps could've been better as well. I went to the hardware store and upgraded the installation hardware. Poor/Lack of installation instructions but it is an easy project.
    - There was excessive slag from the weld shop inside the tank when I received it, I dicked around for awile to get it out of the tank.
     
  13. arq

    arq 1/2 ton status

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    Steve,

    do you have a hitch on your blazer, i can't tell if you have it on the pic or not. Is there any room for one with that tnak.

    ARQ.
     
  14. Steve_Chin

    Steve_Chin 1/2 ton status

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    Yeah, there's a receiver hidden behind the license plate. It was custom-built from what I can tell and whomever welded it up had welding skills only slightly better than mine (i.e. their skills suck). There's room behind the tank for the hitch receiver I have, but I don't know about an off-the-shelf hitch receiver. I know that my hunting partner's Blazer has an off-the-shelf receiver hitch and it fits with his 37 gallon tank. It looks like his receiver hitch would also fit behind my gas tank.
     
  15. u2slow

    u2slow 1/2 ton status

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    Has anyone tried the 73-91 Blazer tank in their 69-72?

    I put one in my shortbox and had room to spare. Only cost me $120 new from the jobber.
    <A target="_blank" HREF=http://209.53.37.213/~u2slow/v3500/fueltank/>http://209.53.37.213/~u2slow/v3500/fueltank/</A>
     

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