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internal/external hubs- What are these?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Mudstud, Jan 18, 2002.

  1. Mudstud

    Mudstud 1/2 ton status

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    Someone explain this to me. What are "internal hub" style hubs. What's the opposite? external hubs? How can I tell the dif?

    Mudstud
    <a target="_blank" href=http://communities.msn.com/OffroadK5s6superliftand33s.msnw?albumlist=2>http://communities.msn.com/OffroadK5s6superliftand33s.msnw?albumlist=2</a>
    76K5 6" with 33s, sb400/350/203parttime/3.73-D44/GM12bolt
     
  2. RaisedK5

    RaisedK5 1/2 ton status

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    The internal hubs are like the 1/2 ton pieces or later 1/2 and 3/4 tons where the hub body is splined and fits inside the end of the hub and is held in by a retaining ring, the External is the kind you see on early 3/4 tons, early jeeps, scouts, where the hub body bolts on to the end of the hub, The internal style is considered stronger because of the spline engagement and the fact that the bolts on external hubs have a tendency to loosen (which anybody that goes with me can tell you) and can result in breakage, (not yet, but i do keep the 9/16 wrench under my seat now so i can keep'em tight).

    Leland aka RaisedK5

    "The Voices told me to do it!"
    <a target="_blank" href=http://www.coloradok5.com/gallery/albun91>This is what they told me to do</a>
     
  3. Mudstud

    Mudstud 1/2 ton status

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    I know what you're talking about regarding the externals on *eeps but I don't remember ever seeing a hub like that bolted on our rigs. You wouldn't happen to have a picture would you?

    Mudstud
    <a target="_blank" href=http://communities.msn.com/OffroadK5s6superliftand33s.msnw?albumlist=2>http://communities.msn.com/OffroadK5s6superliftand33s.msnw?albumlist=2</a>
    76K5 6" with 33s, sb400/350/203parttime/3.73-D44/GM12bolt
     
  4. 6.2Blazer

    6.2Blazer 1/2 ton status

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    The external style hubs are not that common on GMs. I believe only some 3/4 tons back in the 70's had the external style.
     
  5. POWERMAD

    POWERMAD 1/2 ton status

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    <a target="_blank" href=http://www.chuckschevytruckpages.com/images/dana44hub1.jpg>external hub</a>
    I have locking tabs on mine to keep the bolts from loosening up. I am using Warn premiums.

    <font color=green> Too bad ignorance isn't painful </font color=green>
     
  6. Mudstud

    Mudstud 1/2 ton status

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    Thanks fellers, I got the 'picture' so to speak.

    Mudstud
    <a target="_blank" href=http://communities.msn.com/OffroadK5s6superliftand33s.msnw?albumlist=2>http://communities.msn.com/OffroadK5s6superliftand33s.msnw?albumlist=2</a>
    76K5 6" with 33s, sb400/350/203parttime/3.73-D44/GM12bolt
     

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