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Rear diff. question

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Hans_de_Wilt, Feb 5, 2001.

  1. Hans_de_Wilt

    Hans_de_Wilt Registered Member

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    I have a K30 6.2 D ex-millitary truck with a positive traction type GM 14 bolt rear axle. What kind of diff. is that and how does it work? The inside looks different than my front diff.
     
  2. Emmettology 101

    Emmettology 101 3/4 ton status

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    It more than likely is an Eaton Gov-lok unit unless they put differetn unit in for the military.

    If it is an Eaton Gov-lok, then it uses clutches and springs to differenciate power between the wheels..

    Mike [​IMG]
    See <font color=green>EMMETT</font color=green> -&gt; <A target="_blank" HREF=http://emmett.coloradok5.com>http://emmett.coloradok5.com</A>
     
  3. thatK30guy

    thatK30guy 1 ton status Premium Member

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    More likely than not, if this truck is a TRUE military truck, it would have the infamous Detroit Locker. Does the rearend "click like a ratchet" when turning corners? You can check by jacking up one side of rear wheels and leave the tranny in neutral. Spin the wheel that is jacked up and listen to the clicking. If it dont click, then its NOT a Detroit. The only true way to find out would be to take the cover off and pull apart the carrier and dismantle it.
     

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