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  • Stronger transmission gears for using more powerful motors
  • Durability proven in 4S ARRMA vehicles
  • Easy to install — video instructions available online
  • Bonus ARRMA BOOST decal set included in package
  • Experience amplified ARRMA RC bashing performance

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    Copyright Text - 2025 Modelflight

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    Arrma 4x2 Metal Slipper and Input Gears Upgrade Set - BOOST BOX

    SKU: ARA210006
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    Add the extra durability of the ARRMA 4S transmission to your ARRMA 4X2 BOOST, MEGA, or 3S vehicle using the ARRMA Metal Slipper and Metal Input Gears BOOST Box upgrade package. Then you're ready to power up and go from bashing to all-out blasting!

    $207.99
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    Arrma 4x2 Metal Slipper and Input Gears Upgrade Set - BOOST BOX

    SKU: ARA210006
    $207.99
    Loading...
    Loading...

    Add the extra durability of the ARRMA 4S transmission to your ARRMA 4X2 BOOST, MEGA, or 3S vehicle using the ARRMA Metal Slipper and Metal Input Gears BOOST Box upgrade package. Then you're ready to power up and go from bashing to all-out blasting!

    In stock
    Looking for spare parts or upgrades?

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