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  1. #1
    RC Racer
    Join Date
    Aug 2015
    Posts
    201

    Weird sound coming from transmission...

    Hey all,

    Installed a brand new Integy Aluminum tranny for my Slash 2wd and replaced the idler gear with a Robinson Racing steel one. Also using mod 1 pinion and spur (34/36) but getting this weird grinding high pitched sound from my tranny. Checked all gears and they seem fine. Any suggestions? I can't figure this thing out... Here's a video of it so you can hear:

    https://www.youtube.com/watch?v=A83Xf-Mp8nM
    Last edited by jainm; 09-09-2018 at 08:53 PM.

  2. #2
    RC Qualifier Trentbaby65's Avatar
    Join Date
    Feb 2017
    Posts
    438
    Tha aluminium tranny case and that steel idler gear are the reason.
    Steel gears run louder and the case works like an amplifier

  3. #3
    RC Racer
    Join Date
    Aug 2015
    Posts
    201
    So is it normal for the gears to run like that?

  4. #4
    RC Qualifier Trentbaby65's Avatar
    Join Date
    Feb 2017
    Posts
    438
    Steel gears in an alloy case. Yes.

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