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  1. #1
    RC Enthusiast
    Join Date
    Nov 2014
    Posts
    26

    Differential upgrades - front/rear and centre

    Had a few issues with mainly the rear diff but after adding an alloy diff case , a few select shims and new bulkhead and fixtures , itís seams to be cured
    The front obviously doesnít get as much abuse but again , a few select shims has cured that
    But is there any upgrades for the centre diff ?
    Can the gears in the centre diff be replaced as I havenít seen any

    Iím running the standard motor , 8s traxxas lipos and the standard 18/54 ratio but upgraded pinion and spur

    I donít jump really , just blast about mainly on tarmac with a run on gravel now and again

    I just want it to be more durable really
    I donít plan on ever running bog power as Iím happy with it as it is


  2. #2
    RC Champion
    Join Date
    Mar 2016
    Posts
    1,347
    7782 center diff gears
    I run a Hot racing center spool

    Enjoy it
    fabricator

  3. #3
    RC Champion
    Join Date
    Feb 2020
    Location
    Canary Islands, Tenerife, Spain.
    Posts
    1,399
    Quote Originally Posted by CrazyXMAXX View Post
    7782 center diff gears
    I run a Hot racing center spool

    Enjoy it
    Do you mean this?

    https://hot-racing.com/?partnumber=XMX51PE;c=1125

  4. #4
    RC Champion
    Join Date
    Mar 2016
    Posts
    1,347
    After rebuilding the stock center diff a few times
    Have been running a spool for year or so
    No more power wasted on swelling front tires

    Xmaxx Joy
    fabricator

  5. #5
    RC Champion
    Join Date
    Feb 2020
    Location
    Canary Islands, Tenerife, Spain.
    Posts
    1,399
    ŅAnyone knows where I can buy the Hot Racing XMX51PE Center Spool?

  6. #6
    RC Enthusiast
    Join Date
    Nov 2014
    Posts
    26
    Iíve fitted a shim in the internal bevel gears and seems to tightened it up a bit so I believe the weak point was the centre internal gears

    I think with a centre locker , there would be too much strain so I believe for me the centre diff is a god send for me personally

  7. #7
    RC Racer
    Join Date
    Feb 2020
    Location
    Morristown, NJ USA
    Posts
    143
    Quote Originally Posted by Dubzn1 View Post
    I’ve fitted a shim in the internal bevel gears and seems to tightened it up a bit so I believe the weak point was the centre internal gears

    I think with a centre locker , there would be too much strain so I believe for me the centre diff is a god send for me personally
    I agree, having the center diff allows for some give in the drivetrain along with the cushdrive.

    The center diff has 20M wt. diff fluid stock, so this makes it pretty tight alone. IMO negating a diff locker.

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