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Breather hose questions

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by MilpitasK5, May 6, 2002.

  1. MilpitasK5

    MilpitasK5 1/2 ton status

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    Hey all:

    Anyone know what size the breather hoses are on the front and back diffs?
    I also noticed that my rear diff's breather hose goes straight up and cuts off. Should that thing be connected to anything?
    Probably a stupid question but I don't know =).

    Thanks,
     
  2. laketex

    laketex 3/4 ton status

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    I think i used 3/8" fuel line for mine.

    And I connected mine to a fuel filter...to keep the dirt out of the diffs.
     
  3. UseYourBlinker

    UseYourBlinker 1 ton status

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    Hey Chris... There is a clamp thingy that attaches to hose,then screws in the under side of the cargo bed.
     
  4. MilpitasK5

    MilpitasK5 1/2 ton status

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    Got it. Thanks Eric! Thanks Sherman!
    Peace,
     
  5. laketex

    laketex 3/4 ton status

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    no prob nor cal!!! /forums/images/icons/wink.gif
     
  6. 70~K5

    70~K5 1/2 ton status

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    I think K&N makes a breather filter that goes on the hose.
     
  7. 1979Jimmy

    1979Jimmy 1/2 ton status

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    Mine has a little thingy on top of the hose which rattles around when i am moving to let air in and out
     
  8. GRINCH

    GRINCH 1/2 ton status

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    Just replaced mine. It's 5/16" The front connects to a tube near the crossover and then gets routed to the engine compartment with a breather on it to stop water from getting in. The rear routes to over the gas tank and also has a breather on it.

    There were a few posts awhile back where peeps routed them to drier locations such as behind the filler door.

    Hope this helps
     
  9. 85HeartBurb

    85HeartBurb 1/2 ton status

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    mine's 3/8" and that little thingy on the end is a popett valve!!
     

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