TRAXXAS TRX4 Steel Adjustable Main Shaft for TRX4 Trail Crawler by GPM TRX4037SAN  [TRX4037SAN]

Steel adjustable main shaft for TRX4

This GPM TRX4037SAN set is an RC-scale replacement and hop-up kit for the TRAXXAS TRX4 Trail Crawler platform, providing a steel adjustable main shaft with an alloy outer body and accessory o-rings and screws. The assembly uses a universal swing-shaft cross head to increase achievable steering and crawling angles on scale trails, while a pinned head design reduces the risk of parts coming loose during articulation.

The kit supplies measured shaft lengths with separate adjustable ranges for front and rear mounting to help tune wheelbase and axle position for clearance and stability. White silicone o-rings serve as protective buffers between the shaft head and alloy body to limit metal-on-metal contact and reduce wear at high articulation angles.

Use this kit to fine-tune axle placement and steering geometry on TRX4 crawlers, focusing on mechanical reliability and clearance rather than aesthetic change.