This GPM replacement rear main drive shaft is an RC-scale center shaft produced for Axial Yeti platforms, designed to sit in the vehicle's drivetrain as a tunable link between gearbox outputs and rear differentials. The assembly combines hardened steel components with a 6061-T aluminum shaft body to balance strength and reduced rotating mass.
The shaft uses a retained steel wire ring that secures the set screws and prevents fasteners from backing out under vibration. The aluminum sleeve lowers weight while maintaining stiffness where it matters. Length adjustability spans 147mm to 157mm, allowing fine trimming of driveline engagement and pinion/spur alignment without replacing the whole shaft.
For fitment and tuning, verify that the adjustable length matches your Yeti chassis clearance and that the set screws are torqued to the vehicle maker's recommendations for hardware of this size. The part ships with two 2.5XM4X11 stainless steel screws to secure the assembly to the driveline junction.
A direct replacement and tuning option for Axial Yeti drivetrains where a lightweight adjustable shaft and secure fastener retention are required.
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