Synchronizer for vehicle transmission

The invention provides a synchronizer for a vehicle transmission. The synchronizer comprises a gear hub, a sliding gear sleeve and a synchronizing ring, wherein at least two threaded via holes which extend along the central axis direction of the gear hub are formed in the gear hub. The synchronizer provided by the invention can be easily and directly disassembled from a shaft by using bolts, so that the problem of the shortenedservice life of a disassembly tool special for forcible disassembly is avoided, and the problem that a pulling device is limited to the outer diameter size and the axial clearance size of a gear adjacent to the gear hub is also avoided.