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  1. #1
    RC Enthusiast
    Join Date
    Jan 2018
    Posts
    31

    Diff Help Please

    Hi guys!

    I picked up a used fully modified Teton, and it sure is a fun little truck. The only problem is that I’m having trouble with what I’m assuming are the diffs. If I pull wide open throttle I hear a “grinding” noise and the truck doesn’t move much. If I pull throttle nice and slow the truck works as expected. I disassembled it and the teeth and connections all seem ok, from what I can tell. I apologize in advance, as I’m not super savvy so please go easy on me.

    Any help, videos or directions are much appreciated!

  2. #2
    RC Racer
    Join Date
    Oct 2017
    Posts
    201
    Shim the diffs 8mm shims.

  3. #3
    RC Enthusiast
    Join Date
    Aug 2018
    Posts
    39
    How do you know it's not the pinion and spur gear? Those are the ones where the motor transmits power to the driveshaft

  4. #4
    A video of what is happening would help. Does the driveshaft have grub screws holding onto the pinion gears for the diff? I was running my TLR Mini 8ight today and that happened a couple of times. Does it become 2wd?

  5. #5
    RC Enthusiast
    Join Date
    Jan 2018
    Posts
    22
    I had the same problem, found out I bought the plastic dif model. The rear dif will wear out first. Pull out the dog bone and inspect them first, then try and put the dog bone (driveshaft) in the dif and try and turn it with your fingers if it skips disassemble dif, pull off the plastic collars an look at the u shape slots for wear.

  6. #6
    RC Qualifier
    Join Date
    Nov 2018
    Posts
    401
    Yeah. Take out the driveshafts, and inspect the spur gear/ pinion gear mesh.

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