Samix TRX-4M Aluminum Steering Knuckle Set. Intended for the Traxxas TRX-4M rock crawler these aluminum knuckles add strength and reliability.

Samix TRX-4M Aluminum Steering Knuckle Set. Intended for the Traxxas TRX-4M rock crawler these aluminum knuckles add strength and reliability.

Samix TRX-4M Aluminum Servo Horn. Designed as a direct fit for the Traxxas TRX-4M steering servo, this aluminum servo horn offers increased durability, improved steering precision and custom looks.

Samix TRX-4M Aluminum Differential Cover. Constructed from high quality machined aluminum this differential cover offers superior strength and rigidity over the stock parts, while looking great doing it.

Samix TRX-4M Defender Brass Wheel Weights. Constructed from CNC machined brass these weights improve climbing performance and stability by lowering the center of gravity of your TRX-4M. These weights offer an additional 21g of weight each.