

ARA311199
Big Rock/Kraton 6S Differential Set (Front/Rear)
Big Rock/Kraton 6S Differential Set (Front/Rear)
Differential Overview:
This is the Big Rock/Kraton 6S Differential Set from Arrma. With the ability to be used on the Front or Rear this open spiral cut differential set provides a pre-assembled unit for your vehicle, ensuring quick installation and reliable performance. Factory assembled and filled with 80k cSt silicone oil, it offers fast and efficient servicing, while tough steel internal gears ensure long-lasting durability in all conditions. The set features a 43T GP4 spiral cut steel main gear for increased durability under extreme loads, along with metal cross shafts for enhanced efficiency. Rubber shielded bearings are included for a swift and efficient fit to your vehicle.
Features:
- Factory assembled and filled with 80k cSt silicone oil: for fast and efficient servicing
- Tough steel internal gears: for long-lasting durability in all conditions
- Traditional differential assembly: for open differential action
- Strong composite diff case: with integrated steel insert for durability
- 43T GP4 spiral cut steel main gear: for increased durability under extreme loads
- Metal Cross Shafts: for increased efficiency
Specifications:
- Type: Front or Rear Differential Set
- Main Gear: 43T GP4 spiral cut steel
- Oil: 80k cSt silicone oil
Includes:
- (1) Factory Assembled Big Rock/Kraton 6S Differential Set (Front/Rear)
- (4) Differential Shims
- Arrma Big Rock 6S BLX
- Arrma Kraton 6S BLX
Pairs well with
Easy to use for beginners
Durable build for long-lasting fun
Quick recharge and extended range for all-day play
Perfect for pools, lakes, and calm rivers

Big Rock/Kraton 6S Differential Set (Front/Rear)
Product details
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We offer a wide range of RC vehicles including airplanes, drones, helicopters, cars, trucks, boats, and a full selection of parts and upgrades for each.
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Most of our models are RTR (Ready to Run) or RTF (Ready to Fly), meaning they include everything you need out of the box. Some kits may require minimal assembly—check the product description for details.
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