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  1. #1
    RC poster
    Join Date
    Feb 2019

    Xmaxx 8s grinding sound

    Hi guy
    My xmaxx 8s has the same problem just like this video i have found on youtube. Basically it has a very annoying grinding noise when i go heavy throttle but light throttle and reversing did not have any problem.Can you guy please tell me why and how can i fix it

  2. #2
    RC Champion
    Join Date
    Apr 2018
    Sounds like either a stripped spur gear or one that is missing a tooth, or one of your diffs is going out, most likely the rear one.

  3. #3
    RC Racer
    Join Date
    May 2019
    Open it up and inspect the rear crown and pinion.

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