Traxxas TRX-4M Complete Transmission and 87T Motor. This Transmission is a beefy upgrade that comes complete with ball bearings and Titan 87T motor. The 16.6:1 gearing ratio is sure to get you over the mountain and through the woods. Package includes one factory assembled transmission and 87T motor.

Note: This Traxxas motor heat sink is a wonderful upgrade to keep your motor running cool (9793).