RC4WD Ultra Compact 3:1 Gear Reduction Unit for 540 Motor Traxxas Rustler Parts/Accessories Operating Environment: Waterproof* design allows

Operating Environment: Waterproof* design allows for use in nearly any environment

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RC4WD Ultra Compact 3:1 Gear Reduction Unit for 540 Motor Traxxas Rustler Parts/Accessories Operating Environment: Waterproof* design allowsUltra Compact 3: 1 Gear Reduction Unit for 540 Motor From RC4WD Where can you use this product: This gear reduction unit is designed to fit any RC truck, car, robot, airplane, boat that uses standard 540 motor. It will work as long as there is enough room for the extra length (. 7 inch 18mm). Specifications: Gear reduction ratio: 3: 1 Overall diameter: 36mm Length: 18mm (. 7 inch) Output Shaft OD: 0. 12" 3. 2mm (with a flat surface for mounting