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Gas Tank- Metal or Plastic?

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by mkmiller, Aug 12, 2002.

  1. mkmiller

    mkmiller 1/2 ton status

    Joined:
    Oct 31, 2001
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    Location:
    Magnolia, Arkansas
    Which would you use? I've got both now. My blazer currently has a patched metal one and I just bought a skid plate and the guy gave me an almost new plastic tank that he had put in just a few months earlier. Would you use the "new" plastic or keep the metal one in?
    Thanks,
    Matthew
     
  2. Burt4x4

    Burt4x4 3/4 ton status

    Joined:
    Feb 17, 2000
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    Location:
    California (Modesto area)
    I have had both.
    I bought the Polyethelane replacement tank a few years ago and it did work very well. Then the O-ring seal for the sending unit started to leak gas everytime I filled the tank to the top. Not sure why the seal gave out after only two yrs.? I ended up getting a 37gallon tank to replace the 21 poly tank. With the poly tank you will never have to worry about rust in your gas.
    Good luck
     

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