The GPM MAKX177DP front shock absorber shaft core kit provides a robust upgrade path for ARRMA KRATON 8S suspension. Key components use 4140 carbon steel for the shaft and 6061-T6 aluminium for supporting parts to resist bending and wear under heavy duty use. The shaft diameter is increased from 5.0mm to 6.0mm to deliver higher flex resistance while remaining compatible with GPM and original shock absorber assemblies. An engineered oil seal replaces traditional O-ring sealing to offer smoother damper movement and improved oil retention.