TRAXXAS XRT 8S 4140 Medium Carbon Steel+Aluminum 7075 Shock Absorber Shaft Core Kit by GPM XRTDP  [XRTDP]

Shock absorber shaft core for XRT 8S

This shaft core kit is an RC-scale replacement part designed for the TRAXXAS XRT 8S platform and GPM shock assemblies. The cores are manufactured from 4140 medium carbon steel with aluminum 7075 components where specified, and the shaft diameter is increased from the original 5.0mm to 7.0mm to reduce bending and deformation under load while maintaining compatibility with original shock bodies.

The parts are intended for use in either front or rear damper positions and are compatible with both GPM shock absorbers and original factory shock absorbers for the listed model. The sealing design uses an oil seal instead of a traditional O-ring to provide smoother piston travel and improved control of oil retention.

When replacing the shaft core, verify alignment with existing piston and seal dimensions, check for smooth sliding in the shock body before final assembly, and ensure the shock oil and valving remain matched to your tuning goals; the shaft change affects durability and straightness rather than damping characteristics.

Use these shaft cores where increased shaft rigidity and oil-sealing reliability are required, and confirm fitment against your shock bodies before final installation.