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Details:
Give your TRX-4M unstoppable torque with this low-range transmission. The transmission features an ultra-low 40.3:1 reduction ratio for maximum rock-climbing power. Traxxas Pro Built transmissions come professionally assembled with a fresh new Titan 180 87-turn motor. There’s no gear mesh to adjust or parts to align. The assembly bolts in as a complete unit for quick and easy installation.