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  1. #1
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    MIP X-duty Threaded Grub Pins All Came Loose!

    So I installed the MIP X-Duty's on my 4x4 Slash and after one pack all the threaded pin grub screws came lose which attach to the differentials.

    I used the MIP thread gel that came with the kit and made sure to use the thread gel and not the grease (I completely removed the grease from the small cap container that came with the package).

    After taking the axles apart, I found some of the grub screws that at the CVD locations were stuck on super tight from the thread gel, just not on the drive hub section where the grub pin screws were although I used the same amount of blue thread gel on each grub screw.

    I left the model to sit overnight before driving.

    Anyone else encounter this? Any better solutions to the MIP thread gel? Seems like it either locks like mad or doesn't lock at all. Should I stick with traditional Loctite Blue threadlocker?

  2. #2
    RC Qualifier zypher's Avatar
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    Use HPI grub pins. I can get you a part number but they through the diff output and are v secure.


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  3. #3
    RC Qualifier zypher's Avatar
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    86904 is the part number for the appropriate pins


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  4. #4
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    Thanks for the reply zypher, but the MIP grub screws only came loose, and I caught the situation before losing any.

    Are you saying it's an issue with the pins themselves?

  5. #5
    RC Champion Dcuda69's Avatar
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    What are you using for tools? A good hex driver allows you to crank them down tight without worry of stripping the hex. Also make sure the "pin" on those is in the hole on the outdrive or they'll come loose for sure. I've had mine together for some time now and haven't had them come loose yet. 3s and 4s 1/8th scale power. Those HPI pins are on my list but so far so good without them. Good luck!
    Slash 4x4 Ult 2150kv
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  6. #6
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    Quote Originally Posted by Dcuda69 View Post
    What are you using for tools? A good hex driver allows you to crank them down tight without worry of stripping the hex. Also make sure the "pin" on those is in the hole on the outdrive or they'll come loose for sure. I've had mine together for some time now and haven't had them come loose yet. 3s and 4s 1/8th scale power. Those HPI pins are on my list but so far so good without them. Good luck!
    using Team Associated hex tools.

    I tightened them down slightly tighter than tightening a pinion gear.

  7. #7
    RC Qualifier zypher's Avatar
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    Quote Originally Posted by gambit023 View Post
    Thanks for the reply zypher, but the MIP grub screws only came loose, and I caught the situation before losing any.

    Are you saying it's an issue with the pins themselves?
    Yes, these go through the entire shaft and grab much tighter.


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  8. #8
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    Quote Originally Posted by zypher View Post
    86904 is the part number for the appropriate pins


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    this HPI part number comes up as #86904 - STEERING POST. That's the correct part?

  9. #9
    RC Qualifier zypher's Avatar
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    Quote Originally Posted by gambit023 View Post
    this HPI part number comes up as #86904 - STEERING POST. That's the correct part?
    86094 my mistake.


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  10. #10
    RC Champion nickruger's Avatar
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    Stick to the pins zypher said and never look back. I went down the same road as you.

  11. #11
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    Quote Originally Posted by zypher View Post
    86094 my mistake.


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    thanks. How many do you use per drive hub? 2?

  12. #12
    RC Qualifier zypher's Avatar
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    Quote Originally Posted by gambit023 View Post
    thanks. How many do you use per drive hub? 2?
    The drive hub is the part that connect tot he differential correct? Then just one.


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  13. #13
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    Quote Originally Posted by zypher View Post
    The drive hub is the part that connect tot he differential correct? Then just one.


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    Yes. Thanks. I'll give this a try!

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