Limited Slip

Discussion in 'Engine/Drivetrain' started by 93Yoter, Feb 6, 2008.

  1. 93Yoter

    93Yoter Addict

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    So the next thing I want for my truck is some sort of limited slip/locker. Pretty much it needs to handle drag racing, some daily driving, autocross and possibly mountain dirt roads. This is also for a 93 2wd with the 22re which means a 7.5" rear correct? I don't really care about noise as long as it's not excessive.

    So basically what are some good brands/designs for my truck? Advantages/disadvantages? Basically I have no clue about diffs so I'm looking for some help.

    Thanks

    Oh and I would like to spend less than $400
     
    Last edited: Feb 6, 2008
  2. cEElint

    cEElint Enthusiast

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    i'm also very interested in a LSD for my tranny that can take some occasional drag and autocross..
     
  3. 93Yoter

    93Yoter Addict

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    Ok well it looks like a detroit truetrac would be the way to go but they're a little expensive. Are there and axles with a lsd that I can just swap over with the same bolt pattern etc.
     
  4. 93Yoter

    93Yoter Addict

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    Does anyone have experiance with a powertrax?
     
  5. Litneon

    Litneon Super Moderator Staff Member

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    Yes, very aggressive. Also a little noisy when you turn. They work well, but for a daily driver it may be too much. It changes the driving characteristics pretty drastically. I don't think I would recommend it over the truetrac, especially for autocross. Just remember how it works, in a turn it sends power to the inside wheel and allows the outside wheel to turn faster releasing the locking mechanism inside. As it does this, you will hear the signature ratcheting noise. When you apply enough power to overcome the available traction on the inside wheel (or in a straight line whichever wheel has less available traction) that wheel will spin slightly until the center pin cams both side gears into place and power is split evenly between wheels. This is fine in a straight line, but since in a turn the weight is already shifted to the outside wheel, it tends to chirp the inside tire repeatedly subjecting the axle assembly to some pretty big shock loads.
    The other side effect that may not be so desirable for autocross is the "push" the lockright will create in the turns. Since the rear wheels will want to travel the same distance when on the throttle, it is effectively a spool and will create the same effect on steering - wanting to go straight.

    Mind you, I'm not trying to talk you out of using the product, I am happy with the quality of workmanship and the benefits of the unit. You will just have to learn to drive around the locker, changing driving style slightly.
     
  6. 93Yoter

    93Yoter Addict

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    so are you running a powertrax now? I think that's the route I'll go since it's a much easier/cheaper install even though there are some down falls.
     
  7. Litneon

    Litneon Super Moderator Staff Member

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    No, not in my pickup anymore (I still run one in the front axle of my 4runner). I removed it and gave it to a friend. I don't think that you will regret it. It just takes a bit of getting used to.
     
  8. 93Yoter

    93Yoter Addict

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    so what are you running now?
     
  9. TRUCK ACTION

    TRUCK ACTION Grand Toyotaholic

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    LC & Performance Products both have these!:cool:
     
  10. Litneon

    Litneon Super Moderator Staff Member

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    For the time being, I run an open diff. Part of the reason I gave the lockright away is because I plan on upgrading to the 8" rear end.
     
  11. F1000X

    F1000X Member

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    Has anyone considered using a clutch type limited slip differential? I'm pretty sure Downey Offroad and LC Engineering both sell these in addition to their gear based alternatives.
     
  12. skip

    skip Enthusiast

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    I have a lock-right in my 86'. i was lucky and got one of the very few 2wd trucks that came with the 8'' rear end :) I've had it in my truck for a few months and i have never heard the ratcheting everyone talks about, and i think its because im using the really thick gear oil that powertrax recomends (85W-140) It does handle different but its not a bad thing. my 86' is my daily driver and it doesnt bug me at all. I say go with the lock-right. and get it at performanceoffroadcenter.com, its the cheapest place i found it. 249.99.
     

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