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 5th gear for the ZF S6-650 6-speed manual, commonly used on Ford Super Duty trucks. The helical profile with an integrated synchronizer dog ring provides smooth 4–5/5–6 upshifts and quieter highway operation. Precision-hobbed and finish-ground to OE-matched geometry, it drops in cleanly during rebuilds and maintains alignment under load. For best results, pair with the matching 5–6 synchronizer set and corresponding counter gear, and verify fitment by transmission tag before ordering.

Specification

Tooth Count: 48 / 54 teeth

Tooth Form: Helical

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

Heat Treatment: Carburized & quenched

Surface Hardness: HRC 58–62

Manufacturing Processes: CNC turning/milling; precision hobbing; dog-tooth finishing & deburring; bore and locating faces precision-ground