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  1. #1
    RC Enthusiast
    Join Date
    Jan 2018

    rear diff failure

    My rear diff failed today! it's the metal diff, It look like the slots where the dogbones fit in are gone. Is this plastic even in the metal diff? Do I need to order the entire dif?

  2. #2
    RC Racer
    Join Date
    Nov 2017
    My stock diffs have held up with stock motor and batt. Is yours brushless?

  3. #3
    RC poster
    Join Date
    Apr 2019
    I believe the metal diff is part number 7579x and yes, the drive cups are part of the diff itself and they are all metal. order a new diff, install(its pretty easy) and apply some heavy automotive grease to the gears and reassemble!

  4. #4
    RC poster
    Join Date
    Mar 2019
    Once you rebuild your diff, you should add brass sleeves over the oudrives.

    Go to your local hardware store and get Brass Compression Tube Fitting, Sleeve, 5/16" Tube OD, for a few cents, you'll solidify the outdrives, just add a drop of glue to keep em in place.

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