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  1. #1
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    Question transmissio swap

    will the newer brushless trans swap in to my 3906 ? thanks

  2. #2
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    I believe that the newer tranny is not a direct fit. I would think that some custom fab'ing to the chassis would be in order.

    Are you trying to beef it up so you can run a brushless system?

  3. #3
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    Quote Originally Posted by M n M View Post
    I believe that the newer tranny is not a direct fit. I would think that some custom fab'ing to the chassis would be in order.

    Are you trying to beef it up so you can run a brushless system?
    yup lol a hobby king 160a and a 2100kv motor

  4. #4
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    I wish I could help you, but I'm not really up to speed on the 3906 series Maxx.

    You can try here to get parts breakdowns to help sort out what parts you might need:
    http://traxxas.com/support/PDF-Downl...revious-Models

    I think members like Trax De Max and Power to the Maxx have 3906's. They may be a good source of info.

  5. #5
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    yep it's not a direct fit, i've never seen the newer transmission and haven't heard of people swapping it out into the 3906 chassis.
    You could beef up your transmission more by changing the plastic idlers to steel #3996X
    and change the input shaft and slipper system, i haven't done this but there is a good how too on this forum.
    and lock and secure the 2nd gear inside the transmission and use it like that if you go brushless.
    Motorcycle/Quad,Think sand vehicle, piggy backs

  6. #6
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    Quote Originally Posted by trax de max View Post
    yep it's not a direct fit, i've never seen the newer transmission and haven't heard of people swapping it out into the 3906 chassis.
    You could beef up your transmission more by changing the plastic idlers to steel #3996X
    and change the input shaft and slipper system, i haven't done this but there is a good how too on this forum.
    and lock and secure the 2nd gear inside the transmission and use it like that if you go brushless.
    what do you mean loch and secure the 2nd gear?

  7. #7
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    http://robotwars.00server.com/emaxxupgrade.html
    ^ 3906 Upgrade Guide, thanks to AoD.

    YOu remove the 1st gear sets and install a pin or spacer or something to keep the second gears in line. Never done it myself, try the search function of the forum or Google it.
    "American Muscle beats import any day of the week"

  8. #8
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    Bolt the drive dog #3986 to the high gear#3985. Low gear is of no use really, Espiecially using a powerful set up.
    The plastic idlers #3996 also need changing to the steel idlers #3996X, these need grounded down and the original short shafts re-used, You only need one as it's going to be locked in hi gear and the gear selector removed.
    The input shaft may also need changing but i haven't done that yet.
    There is a great write up somewhere in here with a good walk through.
    Motorcycle/Quad,Think sand vehicle, piggy backs

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