Posi-lok

Discussion in 'Transfer Cases' started by DTrain, Jan 11, 2021.

  1. DTrain

    DTrain OBS Enthusiast

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    Not sure this is the right to place to post this, but it felt right.

    Also not sure if this has been touched on, but going for it anyhow.

    Curious about Posi-lok 4x4 actuators. To replace the thermal POS units that came in the 88-00trucks.

    I’d like to hear from folks who have history with them. How they like them and so on.

    Also wondering opinions on the cable actuated ones vs. the perm-lok units.

    Thanks,
    D
     
  2. Frank Enstein

    Frank Enstein I'm Awesome

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    I have done the cable actuated one on Frank and I have sold them for over 25 years. They work perfectly. The perm lock is o.k. but increases drag because the differential is turning road speed all the time. They are fine for a trail rig with a selectable locker but I haven't recommended or sold one ever. It is cheaper but having the option of low range 2wd is pretty cool. I use that a bunch hooking up to trailers or slow/tight space driving. It is especially helpful because Frank (my dually) has an NV4500.
     
  3. DTrain

    DTrain OBS Enthusiast

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    What happens with the electrical connector? Did you just tie it up out of the way or cap it? Does the 4wd shifter still light up when it’s in 4wd?
     

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