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binding in rear when turning

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by CAROLINAK5, Dec 24, 2001.

  1. CAROLINAK5

    CAROLINAK5 1/2 ton status

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    sometimes when i turn while accelerating, it feels as though the rear end wants to bind or lock up. the rear wheels begin to hop an when i get it straight it makes a loud "thud" and everything is back to normal.
    it doesn't seem to do it all the time and it doesn't matter which way you turn, though it is more often when turning to the right.
    any help would be appreciated.
    it's a corp. 12 w/ 3:08's. i'm not sure if it has limited slip or not. i have not opened the rear end. shoot, iwouldn't know what i was looking at anyway. i will open it up if someone thinks they can help me with this and needs some more info.



    when all else fails..............HIDE!!!!!!!!!!!!!!!!![​IMG]

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  2. Tall_Girl

    Tall_Girl Registered Member

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    Ok, here I go on my first reply. Everybody help me with this. I'm no expert.
    This sounds like a gov-lock. I heard Sammy has one too. If you turn too fast it locks up, and pretty violent. Sammy exploded his one already from what I heard.

    But then again, I'm only still a newbie.

    XXX
    Lana.

    6'5" tall Dutch girl, just bought a 88 K5, and about to dump the jeep.
     
  3. CAROLINAK5

    CAROLINAK5 1/2 ton status

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    #1.....it does it when turning slow. i.e. turning into a parking lot or a parking space.

    #2...just what does a gov-loc look like? i may go ahead and pull the pan and see just what is in there.



    when all else fails..............HIDE!!!!!!!!!!!!!!!!![​IMG]

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  4. Butch

    Butch 1/2 ton status

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    A gov-lock looks like an overgrown watch in your rear end. There will be little gears and counter weights and all kinds of junk and if it is like mine most of those parts will be laying in the bottom of your diff :-))). If you want to find out without removing the diff cover the jack up your truck so that both back tires are off the ground put it in neutral and go and spin one tire forward as fast as you can. The other tire should start off spinning backwards then after 3 or 4 good fast revolutions it will go slam and then the other tire will start going forwards. If it does that it is a gov loc. If they both spin forwards it is either a locker or limited slip. If they continue to spin opposite it is open. If you have a limited or a locker it will chirp the tires in a tight turn and that is natural. A locker will just be more violent about it.

    I thought I was wrong once,
    but I was mistaken
     
  5. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    Well it could be a VERY tight GovLoc. The Lady's 79 has one and never really experianced that sort of complaint. It's pretty docile till you give it some gas. However My Detroit acts like your descibing if I am giving it a little gas.
    If you take the cover off what you will find is on one side of the diff is a spring loaded weight and a gear. That's the way to tell a Gov Lock. Your build sticker in the glove box will list if the truck was equipped with one from the factory.
    It's also possible that the original Gov Lock gave it up and somebody along the way swapped in a different locker.
    I am not sure what's in my pontiac. It's listed as a Safety Track locking Diff (Pontiac version of the posi) but it acts just like your describing. At slow speeds if I start to make a hard turn while it's coasting the car will stop till I give it some gas and then it will slip the inside tire to unbind. Or give it enough gass and it will walk the car side ways [​IMG]
    As long as you don't find and clutch peices in the bottom or chipped spider gears I would go with it.

    Women dig dents and flat paint!
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    Grim-Reaper
     
  6. CAROLINAK5

    CAROLINAK5 1/2 ton status

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    i'll give those options a go. i appreciate the help!





    when all else fails..............HIDE!!!!!!!!!!!!!!!!![​IMG]

    <a target="_blank" href=http://coloradok5.com/gallery/albun32>http://coloradok5.com/gallery/albun32</a>
     

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