Main Shaft | Nissan FS5W71 4WD Married transfer case
Description
Replacement main shaft for Nissan FS5W71 manual transmissions in 4WD “Married” configuration (gearbox directly coupled to the transfer case). Made from case-carburizing alloy steel with reinforced spline and journal sections, the shaft delivers high torque capacity and long fatigue life. Precision CNC machining and finish grinding provide excellent run-out and concentricity—ideal for quality rebuilds or durability upgrades.
Specification
Material: SCM420H/SCM415 or SAE 8620 carburizing alloy steel (equivalent)
Heat Treatment: Carburized & quenched, tempered (tough core, hardened surface)
Surface Hardness: HRC 58–62 with controlled effective case depth
Manufacturing: CNC turning/milling, spline hobbing/broaching with deburr, OD/face grinding
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Model:S-265