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Description

This is a 25-tooth input shaft designed for use in early Borg-Warner T10 4-speed manual transmissions for GM applications. It features a 10-spline input, no threads on the pilot tip, and a 25T helical drive gear. Commonly found in 1960s–70s Chevrolet muscle cars such as Camaro, Chevelle, and Corvette, this input shaft is ideal for stock replacement or classic drivetrain restoration. Manufactured from carburized alloy steel and precision-machined for excellent fitment and durability under high-load conditions.

Specification

Gear Type : Helical

Gear Teeth : 10/25/36 teeth

Threaded Tip : No threads (smooth pilot tip)

Material : SAE 8620 or SCM415 carburized alloy steel

Heat Treatment : Carburized and Quenched

Surface Hardness : HRC 58–62

Machining : Precision gear hobbing and spline broaching