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Description

The NV18920 is a clutching cone/teeth ring for the New Venture NV4500 5-speed, Chevrolet/GM variant. Press-fitted to the reverse gear, it provides the ground friction cone and dog-tooth base for the 5th/Reverse synchronizer sleeve. Precision-ground cone and faces with edge-relieved dogs deliver consistent synchronizing torque, clean engagement, and reduced reverse NVH. Built to OE geometry and tolerances for a true drop-in during rebuilds.

Specification

Tooth Form: Synchronizer dog teeth (non-drive)

Material: Alloy case-hardening steel, SCM415 / SAE 8620

Heat Treatment: Carburized & quenched

Surface Hardness: HRC 58–62

Manufacturing: CNC machining; internal spline broaching; dog-tooth finishing & deburring; cone and faces precision-ground