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Description

The T10-15 synchronizer sleeve is built for the Borg Warner T10 4-speed manual transmission. Working together with the synchro hub and blocker rings, it positively locks the selected gear to the mainshaft for smooth, consistent shifts and dependable torque transfer. Commonly found in classic American muscle cars—Chevrolet Camaro, Corvette, Chevelle, Pontiac Firebird, and Ford Mustang—this sleeve is an excellent choice for restoration, routine service, and high-demand replacements to restore crisp engagement and long-term reliability.

Specification

Tooth Count: 36 teeth

Material: SAE 8620 or SCM415 carburized alloy steel

Heat Treatment: Carburized & quenched

Surface Hardness: HRC 58–62 (dog teeth/working surfaces)

Manufacturing Process: CNC turning/milling, precision internal & external spline machining, dog-tooth finishing, deburring