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  1. #1
    JK Enthusiast Fly-Attack's Avatar
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    Default True-Trac with 35's

    Anyone running Detroit True-Trac's with 35" or larger tires?

    Eaton recommends 32" tires Maximum.
    Ohhhh..10'
    Stone White Unlimited
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    35" BFG T/A KM2's on Pro Comp 8179 Alloys
    TeraFlex 3.5" with Full Flex Arms
    TeraFlex HD Adjustable Track Bars and Qwik Disco's
    4.88 G2's and Detroit TrueTrac's F/R
    EVO 44 Magnum Sealed Axle Sleeves
    EVO C2 Axle Gussets
    EVO F/R CA Skids
    Smitty XRC8 Comp winch
    Dual Optima Yellow-tops
    Evap Relocation
    High-Clearance Exhaust

    SUPERCHIPPED

  2. #2
    JK Super Freak jeepoholic's Avatar
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    Default

    I have Lock Right by Richmond in the rear with 5.13 gear and 35's. I really like the set up you just have to get past the clicking and clacking you hear when you turn.

  3. #3
    JK Enthusiast Bacon's Avatar
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    the True Trac is a limited slip is it not? the bigger/heavier the tire, the less effective limited slips are. the friction material is usually not up to the task of handling big heavy tires. i'd stick with a smaller tire or wait for a full-on locker., lunchbox or selectable

    no, I have no personal experience, just second-hand knowledge, so you can take my advice with a grain of salt.
    Current: 08 JKU Rubi
    Past:
    99 TJ 33's
    07 JKU Sahara 35's
    97 ZJ 31's
    91 MJ 35's
    87 YJ 33's

    Originally posted by Yankee:
    It is an expensive mud slogging, sand throwing, snowmobile with a heater, convertable toy that as a bonus happens to provide daily transportation.

  4. #4
    JK Enthusiast
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    Quote Originally Posted by Fly-Attack View Post
    Anyone running Detroit True-Trac's with 35" or larger tires?

    Eaton recommends 32" tires Maximum.
    I put one in my Titan's D44 several months back after my OEM E-locker grenaded. The Titan has 33s. I know there are a lot of Titan owners with them in and they are running 35s. I haven't heard of any issues.
    2009 Stone White Rubicon Unlimited - SOLD

  5. #5
    JK Newbie Stoneaxe's Avatar
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    Quote Originally Posted by Fly-Attack View Post
    Anyone running Detroit True-Trac's with 35" or larger tires?

    Eaton recommends 32" tires Maximum.
    Well... I just had the Truetrac put in my rear axle. 5:13's and GoodYear 315/70r17 (measuring 33.5 inches loaded). Only had it for a week. I'll be off next week at the beach and some trails to test it out. I'm confident it will work fine.

    I don't believe the Truetrac uses friction components so I don't see where they would be adversely effected by tire weight/size.

    2009 X Unlimited

    Black w/ Auto and Hardtop | 3.5" BDS Springs | Bilstein 550 Shocks | AEV Steering Kit w/ BDS Dampener | SUPERCHIPS | 17x8 Black Rock 900 Viper Matte Black Wheels | 315/70R17 Goodyear Wrangler Duratrac | Superior 5:13's | Detroit Trutrac | ARB Diff Covers


  6. #6
    JK Freak
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    The 32" tire limitation for the Detroit Truetrac is old product information. I have them in both axles with 35" tires and they work flawlessly. They are a very strong unit and you don't have to worry about tire size. I have put them to the test off road and I highly recommend them.

  7. #7
    JK Freak
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    Quote Originally Posted by Bacon View Post
    the True Trac is a limited slip is it not? the bigger/heavier the tire, the less effective limited slips are. the friction material is usually not up to the task of handling big heavy tires. i'd stick with a smaller tire or wait for a full-on locker., lunchbox or selectable

    no, I have no personal experience, just second-hand knowledge, so you can take my advice with a grain of salt.
    The Detroit Truetracs are worm gear driven and have no clutches to wear out. They are a very effective traction aiding device.

  8. #8
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    As others have mentioned, Truetracs are a helical gear LSD. IMO, it is the ONLY LSD you'd want in a rig that sees off road time because it doesn't have clutches to wear out (clutches will wear quickly when you lift a tire and spin it) . I've sold many of these units over the years and customers have been very happy with them as long as they don't expect them to be a locker. The additional traction they provide over stock diffs is amazing.

    The 32" tire warranty is old info. IIRC it is now 38".

  9. #9
    JK Enthusiast Fly-Attack's Avatar
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    Thanks for the info guys, i think i'll go this route.
    Ohhhh..10'
    Stone White Unlimited
    6-Speed

    35" BFG T/A KM2's on Pro Comp 8179 Alloys
    TeraFlex 3.5" with Full Flex Arms
    TeraFlex HD Adjustable Track Bars and Qwik Disco's
    4.88 G2's and Detroit TrueTrac's F/R
    EVO 44 Magnum Sealed Axle Sleeves
    EVO C2 Axle Gussets
    EVO F/R CA Skids
    Smitty XRC8 Comp winch
    Dual Optima Yellow-tops
    Evap Relocation
    High-Clearance Exhaust

    SUPERCHIPPED

  10. #10
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    Quote Originally Posted by Jollydodger View Post
    Do YOU think they will work effectively with 38". I am sold on the idea of the Truetracs but wasn't sure if they would actually do there job with tires that big.
    They'll work fine but which axle do you have? I hope you're not trying to make this work on a D30.

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