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This gear set for the RC8B3.1 and RC8B3.1e V3 differentials is great for low traction tracks. The underdrive gear set slows down the rear tire rotation compared to the front, making it more stable on low grip surfaces. Features
#81009 contents: qty 1 Diff Pinion Gear, 12T qty 1 Diff Ring Gear, 42T
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