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Granite 4x4 upgrade for rear diff gear's

Discussion in 'Mega 4x4' started by Bowthumper427, May 13, 2018.

  1. Bowthumper427

    Bowthumper427 Well-Known Member

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    Location:
    Richmond VA.
    Arrma RC's:
    Fazon, Granite, Nero, Voltage, 4x4-Mega
    Installed castle's sidewinder4 3800 kv esc, motor first time trying on 3S rung off rear differential input shaft if anybody knows of any upgrade parts to keep this from happening please let me know thank you. Be Blessed and Blast On.
     
  2. Jerry-rigged

    Jerry-rigged Premium Member!
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    Arrma does have a metal HD input shaft listed at Tower and Amain, but delivery keeps getting bumped, it has never been in stock.

    While we wait, you can make your own. Quick and cheap. There are a few threads here, and I made a video. All you need is your broken input, a spare wheel axle (from a mega 4x4) and a 2mm or 2.5mm crosspin.

     
    TheBadazz likes this.
  3. chazekxt46

    chazekxt46 Well-Known Member

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    Arrma RC's:
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    or stop running 3s
     
  4. Jerry-rigged

    Jerry-rigged Premium Member!
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    I was running 3s and 4s, after the HD input mod and Yeti 32p spur. I dropped to a small 2s motor mostly because I was destroying tires too fast... LOL

    But now I am getting bored with my 3000kv F540 motor. Better than stock, but I am wanting some POWER again. :)
     
  5. ChadFury

    ChadFury Well-Known Member

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    Hi Jerry would it backflip off jumps on 3s?
     
  6. Jerry-rigged

    Jerry-rigged Premium Member!
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    I didn't get a chance to jump it on 3s. I did try some tree jumps / flips (drive up the side of a big tree and make it flip). Funny, it would do tree flips on stock power, but not on 3s/4s. I think the BLX185 was accelerating the wheels too fast, wheel acceleration is what makes the car flip, and the wheels would be at full speed long before the truck was airborne... LOL
     
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