Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Synchronizer Assembly

ASSEMBLE
1. Sleeve onto hub.
- Check scribe marks for correct positions.
- Remove spiral lock ring for easier assembly (fifth-reverse only).
2. Spring into key.
- Assembly into the hub.





3. Position assembly as shown.
4. Balls.
- Push the ball into the sleeve using a screwdriver.
- Push the sleeve down just enough to retain the ball.
- Slide the sleeve up just enough to install each of the two remaining balls (one at a time).
5. Synchronizer rings.
- Make sure synchronizer ring tangs line up with the keys.
6. Center the hub, keys and balls by pushing on the synchronizer rings. Balls will "click" into position.
- Install spiral lock ring (fifth-reverse only).