TRAXXAS TRX4 Adjustable Steel Main Shaft TRX4037SAN by GPM  [TRX4037SAN]

Precision steel shaft upgrade for TRX4

This TRX4037SAN kit is an aftermarket replacement and hop-up for the TRAXXAS TRX4 Trail Crawler, supplying a steel adjustable main shaft with an alloy outer body plus the included o-rings and screws. The universal swing-shaft cross head increases achievable steering and crawling angles on technical trails while the pinned head design reduces the risk of parts coming loose during heavy articulation.

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

Fit this kit to fine-tune axle placement and steering geometry on TRX4 crawlers, prioritising mechanical reliability and ground clearance over cosmetic change.