New Venture NV4500 3rd-4th Synchronizer Hub
Description
The NV17301 is the 3rd/4th synchronizer hub & sleeve assembly for the New Venture NV4500 5-speed. The hub carries the keys and springs, while the slider’s precision-finished dog teeth interface with the 3rd-gear clutching ring and the input-side cone for 4th-gear direct drive. CNC-machined, broached, and ground to OE-matched geometry, it restores consistent blocking torque, crisp engagement, and low NVH in mid-range shifts.
Specification
Tooth Form: Synchronizer dog teeth (non-drive)
Tooth Count: 36/28T
Material: Alloy case-hardening steel, SCM415 / SAE 8620 (or equivalent)
Heat Treatment: Carburized & quenched
Surface Hardness: HRC 58–62
Manufacturing: CNC machining; internal spline broaching; dog-tooth finishing & deburring; faces precision-ground
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Model:NV17301