Every Brass Upgrade Traxxas TRX4 Heavy Metal Bronco Episode 1
Fits all existing TRX-4 RC Car. 1 Set Front&Rear Axle Housing. Allows for precise and easy addition of weights on the portal axle. Brass Axle Housing Heavy Duty Counter Weight Set. Upgrade For 1/10 Traxxas TRX4 RC Car Brass Weight Portal Front&Rear Axle Housing.