Shifting Fork Casting Part Mass Production

​Shift forks move the synchronizers responsible for changing gears in a manual transmission into mesh with the desired gear. They typically serve two gear ranges. They lock one gear to the shaft when moved forward and the other gear when they're moved backward. Shift forks are attached to shift rail, they slide into a groove in the synchronizer sleeve. The synchronizer spins freely on the fork's two fingers. Most have smooth nylon pads that offer less resistance and noise while in operation.