Operation CHARM: Car repair manuals for everyone.

Synchronizer Keys & Springs






The synchronizer hubs and sliding sleeves are a selected assembly and should be kept together as originally assembled, but the keys and springs may be replaced if worn or broken. Refer to image when disassembling and assembling synchronizers.

Disassemble
1. If relation of hub and sleeves are not already marked, mark for assembly purposes.

2. Push sliding sleeve from hub. Keys will fall free and springs may be easily removed.

Assemble
1. Place a blocker ring on side of hub and sleeve and install keys and retain with a spring.

2. Place a blocker ring on opposite side of hub and sleeve, and install remaining spring