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breathers

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 85k5blzr, Feb 14, 2001.

  1. 85k5blzr

    85k5blzr 1/2 ton status

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    I have the stock GMC 10 bolt 27 spline on my 85k5 and i was wondering if the differentials tended to suck in water like the toyota ones. If so, what's a good way to rig up some breathers?

    85 k5 blazer with an old 305....must have more power! [​IMG]
     
  2. 85k5blzr

    85k5blzr 1/2 ton status

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    Anyone? Sorry, i am a rookie at this.

    85 k5 blazer with an old 305....must have more power! [​IMG]
     
  3. HarryH3

    HarryH3 1 ton status Author

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    If you look under your rig, you should see a rubber tube attached to the rear axle, that extends up to the body. (It attaches to one of the axle tubes. The hose that goes to the top of the diff is the rear brake line). That's the factory extended breather. If you think you'll go in deeper than that, then you can extend the hose up into the engine compartment or just up into the inner fender area.

    There's a similar hose on the front axle. It will go up to the radiator support area, usually it runs right next to the brown wire that comes up from the brake proportioning valve. It can be extended as well.

    <font color=black>HarryH3 - '75 K5</font color=black>
    <A target="_blank" HREF=http://ThunderTruck.ColoradoK5.com>http://ThunderTruck.ColoradoK5.com</A>
     

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