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What a newbie question...

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 1979Jimmy, Nov 18, 2001.

  1. 1979Jimmy

    1979Jimmy 1/2 ton status

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    What is the difference between high and high loc and low and low loc?

    79 Jimmy, 5" lift 35 M/T with a 383 puttin out 400hp and 450lb/ft. Locked front and back.
     
  2. KRAZIE87K5

    KRAZIE87K5 1/2 ton status

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    The "LOC" positions "LOCK" the front and rear shafts together so that they will always turn at the same rate. The other position will allow the two shafts to rotate independently.

    <font color=red>GOT MUD???</font color=red>
    My license plate reads:<font color=blue> 8 YR SUV</font color=blue>
    <a target="_blank" href=http://24.10.209.54/bigolk5.htm>http://24.10.209.54/bigolk5.htm</a>
    454/TH400/NP205 - 14BFF/D60/w/ 4.10s
     
  3. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    High on a 203 T-case will allow torque to be split unevenly front to rear depending on traction available. High-Lock locks the differential inside the case so torque is split 50/50 no matter what traction is available.

    Think of the 203 T-case as a big selectable locker...in high the thing is 'open' in High-lock (or Low-Lock) it's locked.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     
  4. 1979Jimmy

    1979Jimmy 1/2 ton status

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    So should i always keep it in 4 loc off road for the best traction and in bad weather just put it in high.

    79 Jimmy, 5" lift 35 M/T with a 383 puttin out 400hp and 450lb/ft. Locked front and back.
     
  5. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Yup...[​IMG]

    Just think, your truck has all the advantages of AWD while still being tough off-road. The features you enjoy are the same ones the car company's brag about in new SUV ads today. Selectable AWD!!![​IMG] Dedicated low range!!! Buy now and we'll set you up with 0% financing!!! [​IMG]

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     
  6. 76chevy

    76chevy 1/2 ton status

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    I rarely even have to put mine in Loc. It of course depends on the traction but Hi is just fine for me. Of course for rock crawling you will want the benifits of Low for the better gearing.



    <font color=red>Spirit of 76</font color=red>
     
  7. shupach

    shupach 1/2 ton status

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    i usually run mine in 4 loc when offroading and when im mudding ill put it in 4lo just cause i get more tire spin.

    phill
     
  8. MudNurI

    MudNurI 1/2 ton status

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    even better newbie question -what the h*ll is a "loc" ????

    --Brandy

    IF ONLY THE 4 YEAR OLD COULD TURN A WRENCH
    1986 K5 4" skyjacker suspension 3 " body, 14 bolt rear 12 bolt dana 44 front, TIRED ol 305-
     
  9. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    The T-case shifter for a 203 is marked HI-LOC, etc...I guess there's only so much room on top of a shifter handle. HIGH-LOCK wouldn't fit...[​IMG]

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     

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