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Difference between Auburn LSD and Auburn Pro LSD?

Discussion in '3rd Gen Tundras (2014+)' started by Klappy803, Sep 15, 2019.

  1. Sep 15, 2019 at 4:57 PM
    #1
    Klappy803

    Klappy803 [OP] New Member

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    Hey All,
    I'm looking to purchase an Auburn LSD for my '16 Crewmax and see that on summit racing's website there is a Auburn LSD (part number AUB-5420134) and an Auburn Pro LSD ( part number AUB-5420134PRO).
    Anyone know what the difference is? Does the Pro come with the friction additive?

    Also where have you guys that have done one of these conversions got your new bearings from?

    Thanks,
    Andy
     
    Mountun Goat likes this.
  2. Sep 15, 2019 at 5:26 PM
    #2
    Rex Kramer

    Rex Kramer New Member

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    Auburn limited slip additive included is included with the Pro, and it's 5.7L specific.

    At least that's what I read when comparing the two.
     
    Last edited: Sep 15, 2019
  3. Sep 15, 2019 at 6:11 PM
    #3
    Jengel451

    Jengel451 Misanthropist

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    The Pro is a more aggressive setup. The difference is the Spring preload.
     
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  4. Sep 15, 2019 at 7:57 PM
    #4
    Klappy803

    Klappy803 [OP] New Member

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    Agressive in respect to what? Does it engage with more wheel spin? Am I understanding this?
     
  5. Sep 16, 2019 at 4:00 PM
    #5
    Jengel451

    Jengel451 Misanthropist

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    It will engage more aggressively and quicker than the standard. Making sharp turns, kicking in sooner on rainy streets etc.
     
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  6. Sep 16, 2019 at 4:29 PM
    #6
    Rex Kramer

    Rex Kramer New Member

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    PRO

    *A robust and unique cone clutch mechanism that outlasts and outperforms plate-type clutch designs.
    *High strength bevel gearing that provides greater resistance to shock loading as compared to helical gear limited-slip designs.
    *The mechanical advantage of a cone clutch versus a plate-type clutch provides quicker torque transfer under any driving condition.
    *Torque sensing and biasing at any speed.
     
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  7. Sep 16, 2019 at 5:55 PM
    #7
    Jengel451

    Jengel451 Misanthropist

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    The pro and the regular one are both cone.
     
  8. Sep 16, 2019 at 5:59 PM
    #8
    Jengel451

    Jengel451 Misanthropist

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    Found this.
    Auburn Limited Slip Differential
    The Auburn Gear H/P Series Limited Slip is a smooth, street-friendly, limited slip differential assembly that uses a preloaded, tapered cone-type clutch system to provide unbeatable on- and off-road performance. The Auburn comes with a no-questions-asked, four-year replacement warranty through Auburn Gear.


    Auburn Pro Series Limited Slip Differential
    The Auburn Gear Pro Series Limited Slip is a very aggressive, yet still street-friendly limited slip. The Pro Series uses the same preloaded cone clutch system, but with a much higher preload rating than Auburn Gear's standard LSD. This unit still comes with Auburn Gear's four-year replacement warranty
     
  9. Sep 16, 2019 at 6:15 PM
    #9
    Rex Kramer

    Rex Kramer New Member

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    Auburn should publish a comparison of the two, and make the decision easier for the potential buyer.
     
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  10. Sep 17, 2019 at 4:55 AM
    #10
    Klappy803

    Klappy803 [OP] New Member

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    But again, what does more spring preload do for me? My driving is 90% on road, but I spend 10 days in Montana each fall on somewhat unmaintained roads.
     
  11. Sep 17, 2019 at 7:15 AM
    #11
    Jengel451

    Jengel451 Misanthropist

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    Call Auburn and ask. Phone call is cheap.
     
  12. Sep 17, 2019 at 7:24 AM
    #12
    Tacotundra

    Tacotundra New Member

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    Motive Gear has the Grip Pro available for our trucks now. No clutches. That's what I plan on running. Just giving another option.
     
  13. Sep 17, 2019 at 7:28 AM
    #13
    Hbjeff

    Hbjeff New Member

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    Finally more options!! The wearing of clutch packs with our high torque motor has me leary of the auburn unit.
     
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  14. Feb 14, 2020 at 11:10 AM
    #14
    RitcheyRch

    RitcheyRch New Member

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    I received an email from Powertrax that the Grip pro GT501536 will not be available for a few more months. Seems to be constant delays on the unit.


     
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  15. Feb 14, 2020 at 5:33 PM
    #15
    Tacotundra

    Tacotundra New Member

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    Yup seems like its gonna be delayed from what you guys have been finding out. Im gonna end up with air locker or the eaton e locker. Just havent decided which. For what the pro grip is gonna cost might as well spend the extra and get a selectable locker
     
  16. Feb 14, 2020 at 5:39 PM
    #16
    Mountun Goat

    Mountun Goat Pretty ugly, yet completely effective

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    Pretty legit bud
    I wish I knew this before buying my Aurbun. Anyone want to buy a regular Aurbun? Haha
     
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  17. Feb 14, 2020 at 5:40 PM
    #17
    Mountun Goat

    Mountun Goat Pretty ugly, yet completely effective

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    Pretty legit bud
    Let’s make a deal haha
     
  18. Feb 14, 2020 at 5:46 PM
    #18
    ssls6

    ssls6 Dr. Awesome

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    Powertrax emailed me and said “no immediate plans” so I don’t know what’s truth.
     
  19. Feb 15, 2020 at 8:04 PM
    #19
    NCTundra1980

    NCTundra1980 New Member

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    I didn’t think Eaton made an e locker for the newer tundras.
     
  20. Feb 16, 2020 at 5:37 AM
    #20
    Worriedman50

    Worriedman50 New Member

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    So how often do you have to pull the Auburn and rebuild it?
     
  21. Feb 16, 2020 at 5:39 AM
    #21
    Hbjeff

    Hbjeff New Member

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    As far as ive seen they are not rebuildable
     
  22. Feb 16, 2020 at 5:48 AM
    #22
    RitcheyRch

    RitcheyRch New Member

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    Yes, not re-buildable per my mechanic.

     
  23. Feb 16, 2020 at 6:22 AM
    #23
    Rex Kramer

    Rex Kramer New Member

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    Has anyone reported a failure with the PRO, or were the failures restricted to the version before the PRO?
     
  24. Feb 16, 2020 at 7:23 AM
    #24
    Black Wolf

    Black Wolf Why are Grey wolves different colors???

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    I haven't seen any mention about Auburn Pro/non Pro issues or failures here in over 5 years. Certainly wish Eaton offered the reliable Detroit locker.
     
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  25. Feb 16, 2020 at 7:35 AM
    #25
    Worriedman50

    Worriedman50 New Member

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    Wish some of those who have installed the Auburn would chime in on longevity and reliability. Still think for my use a LSD rear and e-locker front would be the perfect set up.
     
    Last edited: Feb 16, 2020
  26. Feb 16, 2020 at 7:46 AM
    #26
    Midway

    Midway New Member

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    I've only had my Auburn Pro series LSD, with 4.88s, and running the Harrop TVS2650 for a year. But, so far, it's been flawless. I'm hard on it, too.

    If for whatever reason it fails, definitely would want to look into any non-clutch LSD.

    I'm just careful to use proper gear oil & additive.
     
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  27. Feb 17, 2020 at 4:37 AM
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    RitcheyRch

    RitcheyRch New Member

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    https://www.4wheelparts.com/a/buyers-guides-axles-ring-pinion-differentials



    Auburn Limited Slip Differential:

    The Auburn Gear H/P Series Limited Slip is a smooth, street-friendly, limited slip differential assembly that uses a preloaded, tapered cone-type clutch system to provide unbeatable on- and off-road performance. The Auburn comes with a no-questions-asked, four-year replacement warranty through Auburn Gear.



    Auburn Pro Series Limited Slip Differential:

    The Auburn Gear Pro Series Limited Slip is a very aggressive, yet still street-friendly limited slip. The Pro Series uses the same preloaded cone clutch system, but with a much higher preload rating than Auburn Gear's standard LSD. This unit still comes with Auburn Gear's four-year replacement warranty.


     
  28. Feb 17, 2020 at 4:39 AM
    #28
    ssls6

    ssls6 Dr. Awesome

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    Higher spring preload, same clutch pack, but with more wear? Something to think about.
     
  29. Feb 17, 2020 at 5:45 AM
    #29
    Rex Kramer

    Rex Kramer New Member

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    Where is more wear indicated?
     
  30. Feb 17, 2020 at 7:32 AM
    #30
    ssls6

    ssls6 Dr. Awesome

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    A limited slip must slip during cornering, that is the physics and why you put in additive. More spring pressure will equate to more wear when it slips. That is just the engineering of wear/pressure. The pro unit clearly is meant to act more like a true spool but at what cost, and is that cost the right answer for a street driven truck. I don't know the answer to that which is I wrote my comment as a question. Auburn is choosing 2 spring pressures for their products, that causes me to wonder how they chose that pressure in the first place and the trade offs.

    One thing for sure, the pro unit will cause you to fish-tail earlier on slick roads than the non-pro unit. Something to keep in mind.
     

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