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Rear Diff leaking

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by CAPTAINK5-CT, Jun 19, 2001.

  1. CAPTAINK5-CT

    CAPTAINK5-CT 1/2 ton status

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    All of a sudden, out of the blue, my rear diff is dripping. Haven't crawled under yet, any thoughts?
     
  2. Executioner

    Executioner 1/2 ton status

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    Pinion Seal ?
    FYI, understand the term "pinion bearing pre-load "
     
  3. ftn96

    ftn96 1/2 ton status

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    Captain, have you had your rear end rebuilt recently or something? "Usaually" if you dont have the correct, "Pinion bearing pre-load" your pinion nut can back off a little and cause the pinion to wobble a little bit and thus the pinion seal starts leaking.
    #2. You just could have a bad pinion seal that needs to be replaced, it happens.

    Steve Fox for President, 2004.
    Jimi Hendrix was re-incarnated in 1990 as my....JIMI
    <A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
     
  4. Chaz88K5

    Chaz88K5 1/2 ton status

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    Check your vent tube...that is what was causing mine to spring a leak...i fixed it once and then a few days later it started up again...cleaned out the vent tube and problem solved

    Donations accepted for the "Build Chaz's 1972 K5 fund"!!!
     
  5. CAPTAINK5-CT

    CAPTAINK5-CT 1/2 ton status

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    Thanks for the info. I spoke with my mech and he said the same thing, maybe pinion seal. We'll have to check it out.
     
  6. wheelin247

    wheelin247 1/2 ton status

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    try the gasket to thats what mine was doin changed that gasket and it stoped ...just my few words.
     

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