3rd Speed Mainshaft Gear
Description
Purpose-built 3rd gear (mainshaft) for Aisin AX5 and Toyota G52/L52 5-speed manuals. The integrated clutching teeth and precision-hobbed helical profile deliver rigid mesh with the counter gear and consistent timing with the 3–4 synchronizer, yielding crisp 2–3/3–4 shifts and low NVH. Made from SCM415 / SAE 8620 alloy case-hardening steel and carburized & quenched to HRC 58–62. Ground bore and faces with edge-relieved teeth ensure an OE-spec drop-in during rebuilds.
Specification
Tooth Form: Helical
Tooth Count: 33/27T
Material: Alloy case-hardening steel (SCM415 / SAE 8620)
Heat Treatment: Carburized & quenched
Surface Hardness: HRC 58–62
Manufacturing: CNC turning/milling; precision hobbing; dog-tooth finishing & deburring; bore and locating faces precision-ground
-
Model:S-399