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Description

This Ford Type 9 3rd gear features a helical tooth design with integrated external engagement teeth, enabling precise fitment with the synchronizer assembly for smooth gear shifting.

Manufactured from high-quality SAE 8620 or 4320H carburized alloy steel, the gear undergoes a carburizing and quenching heat treatment process, achieving a surface hardness of HRC 58–62 for superior strength and wear resistance.

It is compatible with vehicles equipped with the Ford Type 9 5-speed manual transmission, including the Ford Sierra, Caterham, and TVR, making it an ideal choice for both performance upgrades and OE replacements.

Specification

Gear Type : Synchromesh Helical Gear

Tooth Count : 30/21T

Tooth Form : Helical, right-hand

Tooth Surface Hardness : HRC 58–62

Center Bore Structure : Precision internal splines for main shaft engagement

Material : SAE 8620 or SAE 4320H

Heat Treatment : Carburized and quenched

Machining Process : Gear hobbing / precision grinding

Engagement Teeth : Yes, with outer teeth designed for synchronizer engagement

Compatible Vehicles : Ford Sierra, Capri, and various British kit cars using the Type 9 gearbox