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three major leaks!

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by EDGE, Oct 10, 2000.

  1. EDGE

    EDGE Registered Member

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    Location:
    virginia beach , va
    Leak one=valve cover gaskets easy and already fixed.
    Leak two=oil pan gasket. Should I change the oil pump while I'm in there?
    Leak three=this is a really bad one,almost a quart a week!Where the front case and the rear case meet on the passenger side near the bottom bolt it leaks really bad.I alredy tightened the bolts and no luck.Can I pull the rear case off and replace the gasket or seal without pulling the t case?Any input would be greatly appreciated.86k5 208 t-case.
     
  2. Peeetah

    Peeetah Registered Member

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    Pump and....

    Better replace the rear seal while you are up there.
     
  3. arnold88

    arnold88 Registered Member

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    You have to pull the driveshaft (of course) and use silicon to seal it up. I had the same problem, the guys at Autozone and O'Reilly's both told me that no gaskets were used from the factory. So I bought the black silicon and sealed it up. It works for a while, but if you flex out much it pulls loose from time to time. I think I have redone that seal 3 times last year. You might also just go to your parts store and buy a sheet of gasket material and custom cut your own. That is how I think I will deal with it the next time. I agree you probably ought to replace the output seal while you're at it. I damaged mine cleaning up the housing last time. Hope this helps.

    1988 K5

    newbie [​IMG]
     
  4. EDGE

    EDGE Registered Member

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    Can I put that gasket material on without pulling the t-case?I'm pretty good at making gaskets but I need to pull the yoke and the rear part of the case to put it on.Can I pull those two without misaligning any of the goodies inside? THANKS
     
  5. arnold88

    arnold88 Registered Member

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    Hey EDGE, sorry it took so long to reply, been out of the country. You don't have to pull the tcase. Just pull the yoke and driveshaft, and unbolt the 4 bolts holding it on. You will leak some fluid so be prepared for that. There is a black plastic piece (it's pretty good size) that has 3 flanges on it, make sure you note how it came off. Just reinstall everything the way it came off. Let me know if you have probs. Later.

    [​IMG]

    newbie [​IMG]
     

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