Front SmartDiff: 8B 2.0 This is the Losi Front SmartDiff for the 8IGHT, 8IGHT 2.0, 8IGHT-E 2.0, and 8IGHT 3.0.Features:Lightweight spur gears and outdrives for greater accelerationTorque-sensing design - the SmartDiff adjusts automatically based on applied powerFully assembled for a direct fit into stock diff locationsFor the Losi 8IGHT, 8IGHT 2.0, 8IGHT-E 2.0, and 8IGHT 3.0Includes:One Losi Front SmartDiff