TRX4M Centre Shaft Upgrade Front + Rear Medium Carbon Steel TRX4M037S by GPM  [TRX4M037S]

Front and rear centre driveshafts

Aftermarket centre driveshafts designed for 1/18 TRX4M models, offered as replacement components rather than original equipment. The medium carbon steel construction improves resistance to torque-induced stress and suits rigs running heavier loads or more extreme articulation.

Fit and function: these shafts carry drivetrain output from the transfer case to each differential, so they affect how power is delivered under load and during steep climbs or tight crawling sections. Fit them when you want increased durability or when stock shafts are limiting your setup.

Assembly guidance: the set supplies the small screw pins needed for attachment and requires basic tool work to access the transfer output. Check spline compatibility and coupling alignment on the TRX4M transfer case before final torqueing to ensure free movement through full suspension travel.

A straightforward centre driveshaft upgrade aimed at hobbyists wanting a stronger driveline on TRX4M 1/18 4WD crawlers and trail trucks.