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

I. Synchronizer Keys and Springs












NOTICE: 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.

REMOVE OR DISCONNECT
- Keys and springs.
- If relation of hub and sleeve are not already marked, mark for assembly purposes.
- Push the sliding sleeve from the hub. The keys will fall free and the springs may be easily removed.

INSTALL OR CONNECT
- Keys and springs.
- Place a blocker ring on side of the hub and sleeve and install keys and retain with a spring.
- Place a blocker ring on opposite side of the hub and sleeve and install remaining spring.