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X CASE LEAKING

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 87chvy4x4, Apr 1, 2001.

  1. 87chvy4x4

    87chvy4x4 Registered Member

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    ok i went muddin today really just to try and go get a guys D*DGE out and after i washed my truck at the car wash i took it home and parked whe n i went out to it to do some final cleaning up i noticed the transfer case was leaking so i checked it out it appears to be coming from somwhere towards the front of it by the way its a np 208 also when i checked the fluid in the fill plug up top by the rear out put shaft it shot fluid out i thought it was supposed to be just below the fill plug?? can any tell me what happened and how full it should be?
    thanks, CALEB

    RiVeR CiTy OfFrOaD
     
  2. Blazer_Boy

    Blazer_Boy 1/2 ton status

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    Your front output seal is bad. Take off your skid plate and front driveshaft. With the case in 4 wd, put a breaker bar on that nut in the middle of the yoke and take that sucker off and the washer. If you want to do it the right way make sure you buy a new nut and washer. Then slide the yoke, whow here comes a bunch of fluid because dumby "Blazer_Boy" here forgot to tell you to drain the case before you do this. Then after you get the yoke off you should see some rubber around that opening, thats your seal. When I changed mine there was some cheap junky that didn't have an outer lip so I had to gouge out the rubber and get to the inner lip to put it on. Then put some silicone around your new seal, place it in the opening and get a REALLY big socket and nail that sucker on in. If you have an actual seal installer, better yet. I usually wait 24 hours before doing anything to let the silicone dry. Then put on everything in reverse and torque that nut up to 120lbs. Fill the case to the top and your ready to roll.

    [​IMG]
     
  3. Pugsley

    Pugsley 1/2 ton status

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    I recently had the same problem, mine was leaking from the sealing surface between the XCase and trans. Try getting a long-pattern 9/16" wrench on those bolts, and see how many are loose.

    [​IMG]
     
  4. HarryH3

    HarryH3 1 ton status Author

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    Heed Blazer_Boy's advice about draining the case before you unbolt anything! The bolts that hold the 208 to its adapter thread into the interior of the case. When you remove them with lube in the case be prepared for an ATF shower... [​IMG]

    Most likely you can tighten the bolts and the leak will stop.

    <font color=black>HarryH3 - '75 K5</font color=black>
    <A target="_blank" HREF=http://ThunderTruck.ColoradoK5.com>http://ThunderTruck.ColoradoK5.com</A>
     
  5. Emmettology 101

    Emmettology 101 3/4 ton status

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    When the fluid came rushing out, was it regular color or brown? Most trips water and mud may get in if you get in over the breather.. To help prevent this, extend your brether up into the engine compartment as high as you can..

    Mike [​IMG]
    See <font color=green>EMMETT</font color=green> -&gt; <A target="_blank" HREF=http://emmett.coloradok5.com>http://emmett.coloradok5.com</A>

    "He who uses a winch...... Is tired of yankin!"
     

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