Arrma 311199 Big Rock/Kraton 6S Differential Set (Front OR Rear).

This Front or Rear Open Spiral Cut Diff Set provides a pre-assembled unit for your ARRMA vehicle

Includes:
1 x Factory Assembled Open Front or Rear Diff, GP4 43T Spiral Cut Gear and 80k cSt Silicone Oil

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
Includes rubber shielded bearings for fast and efficient fit to your vehicle
Open differential favored on rear axle.