A synchronizing device, for a vehicle gearbox, with a synchronizer body which can be mounted rotationally fixedly on an axial shaft, and a shift sleeve which is connected rotationally fixedly to the synchronizer body and can be moved axially along an outer periphery of the synchronizer body and which, to perform a synchronizing process, can be brought from a neutral position into rotationally fixed engagement in a first shift phase with an axially displaceable synchronizer ring and in a second shift phase with a clutch body adjacent to the synchronizer ring. During the first shift phase, the synchronizer ring can be moved in the direction of the adjacent clutch body by the shift sleeve using pressure pads arranged axially displaceably in the synchronizer body, and hence can be brought into frictional engagement with the adjacent clutch body for the purpose of pre-synchronization.