益暐工業有限公司 | 益暐工業SUNUPMASTER - 專業汽車、機械齒輪製造商。

Description

Direct-replacement hub and sleeve set for the ZF S6-650 6-speed’s 5–6 synchronizer (common on Ford Super Duty). Designed to restore crisp, repeatable 4–5/5–6 shifts: the broached internal spline, precision-finished dog teeth, and ground faces guide the blocker rings and maintain alignment under load. OE-matched geometry and tolerances allow a clean drop-in during rebuilds.

Specification

Tooth Count : HUB 42/58 , SLEEVE60

Material: Alloy case-hardening steel, SCM415 / SAE 8620 (or equivalent)

Heat Treatment: Carburized & quenched

Surface Hardness: HRC 58–62 (tough core retained)

Manufacturing: CNC machining; internal spline broaching; dog-tooth finishing & deburring; locating/end faces precision-ground