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12 bolt locker

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by johnny, Aug 21, 2001.

  1. johnny

    johnny Registered Member

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    I just bought a twelve bolt rear from a 73 chevy truck. Would this have c-clips? And what type of locking diff should I buy? I want to wheel the truck somewhat hard but it is still going to be primarily street driven.


    My paycheck = more K5 parts
     
  2. HarryH3

    HarryH3 1 ton status Author

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    Yep, the 12-bolt is a C-clip diff. For lockers there's the Detroit C-Locker, EZ-Locker and Lock Rite and possibly others. If you don't want to go with a locker, lots of folks are happy with the Auburn posi unit for mudding and such.

    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
    It's a great day to be alive...
     
  3. mudhog

    mudhog THEGAME Staff Member Super Moderator

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  4. FRIZZLEFRY

    FRIZZLEFRY 1/2 ton status

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    To me a Detroit locker is the only way to go.

    A balanced diet is a beer in both hands.<a target="_blank" href=http://community.webshots.com/user/beaterwhang>community.webshots.com/user/beaterwhang</a>
     
  5. Executioner

    Executioner 1/2 ton status

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    Temp. Ft. Walton Beach Fl. home=Tucson, Az.
    I am a firm beleiver in Eaton, no not the Gov-Lock, the other possi..........
    For about $350 you can get the newest Eaton possi, with Carbon Fiber clutch packs.
    FYI Auburn is not rebuilable, when it wears out throw it out, and it will wear out.
    Good luck
     
  6. Sammy

    Sammy 1/2 ton status

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    I'm about to drop an ARB air locker in there. To be, it seemed like the best option.

    1988 K5 Blazer Silverado Grand GT in the Netherlands. "No it does not fit everywhere overhere, but after one pass through it will fit the next time"
     
  7. hoserr

    hoserr Registered Member

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    I've had two aurburn's in mine. Blew a spider gear up in one an the other had a ring bolt take it out. so i went to the trusty Detroit.

    '74 350,t-400/205,d44(L/S),12b(detroit)cutout doors, thrashed an twisted
     
  8. jeffer

    jeffer 1/2 ton status

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    I realize that a locker is probably best for wheeling purposes, but I have heard that a locker is not necessarily the best option if you also do a lot of street driving in snow. Would a posi be better in this case? Mine with an open diff sucks in snow/ice. Any opinions here?
     
  9. mudhog

    mudhog THEGAME Staff Member Super Moderator

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