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  1. #1
    RC poster
    Join Date
    Aug 2017
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    4

    Front wheels doesn't spin like the ones at the back

    Hello.
    Like the title says, I am in doubt wether it has been that way from the beginning or if something is wrong.
    After I had it open to look it now seems like the wheels get sort of stuck for a second and then free again.
    Anyone got any good ideas? I am (as you may have guessed) very new to all of this and I can't figure out how to disassemble the car.

  2. #2
    RC poster
    Join Date
    Jul 2017
    Posts
    16
    Maybe a issue in your front differential bearings or gears


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  3. #3
    RC poster
    Join Date
    Aug 2017
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    4
    Quote Originally Posted by crawlerBob View Post
    Maybe a issue in your front differential bearings or gears


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    How do I find out if that is the problem?

  4. #4
    RC poster
    Join Date
    Jul 2017
    Posts
    16
    I'd start by just removing diff cover and inspect gears and bear that way first


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  5. #5
    RC poster
    Join Date
    Aug 2017
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    4
    I did look, and could not see anything being wrong.

  6. #6
    RC Racer
    Join Date
    Jan 2016
    Posts
    183
    Check the transfer case aswell. You gotta pull the whole transmission to do this.

  7. #7
    RC poster
    Join Date
    Aug 2017
    Posts
    4
    It turns out it was a gear inside the dif-lock that was used up
    thanks for the help and suggestions

  8. #8
    RC Enthusiast
    Join Date
    Sep 2017
    Location
    Austin, TX
    Posts
    44



    I noticed that my front diff remained locked, even after “unlocking” it via the servo. Turns out some water/grime made its way into the front diff and corrosion ensued.

    My spider gears were seized in the front diff. The rest of the differential components were rusty colored and dirty. I couldn’t even remove bearing #5103A so some new parts are on the way. I admit this is my own fault as I never opened or lubed the diffs/portals.

    I checked the rear diff and it looked fine and is working as it should.

    I’ve gone through about 40 packs, mainly on hiking trails with water crossings so I bet that is what caused the water penetration in the front diff.

    Lesson learned - be sure to lube your diffs! Maintenance is key if u play hard and like to get wet like me.

    I just got into this hobby less than a year ago so I’m learning as I go. This rig is the one I use the most and has been a blast!




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  9. #9
    RC poster
    Join Date
    May 2018
    Posts
    8
    joeR6 have you had issues with the screws rusting?

  10. #10
    RC Enthusiast
    Join Date
    Sep 2017
    Location
    Austin, TX
    Posts
    44
    Quote Originally Posted by Todd De Rose View Post
    joeR6 have you had issues with the screws rusting?
    Yes - the nut on the wheels and some of the other screws i have noticed rust on them. Some but not all. I guess i can attribute this to running the rig in water (crossing creeks/streams; no saltwater) but i didn't think the black screws/nuts would rust.

  11. #11
    RC poster
    Join Date
    May 2018
    Posts
    8
    Same here, I contacted Traxxas and they sent me the page in the manual about maintenance on the rig and in the it says to use WD40 or similar water displacing light oil. After rinsing the dirt off of course.

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