Arrma 4X2 4WD Transmission Upgrade Set ARA210003

Arrma 4X2 BOOST 4X4 Transmission Conversion Kit. This optional conversion kit allows you to maximize the performance of your Arrma BOOST 4X2 model. Using this kit allows for increased traction, acceleration and stability across all driving surfaces. Package includes all parts required to make your BOOST model 4WD!