Synchronizers

Disassembly

Note: The following procedures apply to all synchronizer assemblies. The synchronizers are slightly different in design. Notation is made where procedural differences occur.





1. Before disassembly, scribe an alignment mark on the sliding sleeve and the synchronizer hub for assembly reference.





2. On the fifth speed gear synchronizer only, remove the synchronizer hub insert.





3. Note: The first/second speed synchronizer and hub is serviced only as an assembly with the output shaft. Do not attempt to separate the hub from the output shaft. The only parts that are serviced are the synchronizer blocking springs and the synchronizer hub inserts. If the hub or the sleeve is worn or damaged, a new output shaft and synchronizer must be installed as an assembly.

Remove the synchronizer insert retainers and the synchronizer hub inserts.

Assembly





1. Note: When assembling a synchronizer sleeve and hub, match the alignment marks made during disassembly. The sleeve and hub have an extremely close fit and must be held square during assembly to prevent jamming. Do not force the sleeve onto the hub.

Third/Fourth Gear Synchronizer-Assemble the winged synchronizer hub inserts and the synchronizer insert retaining springs. The retaining springs engage the same insert but rotate in opposite directions.





2. On the fifth speed gear synchronizer only, install the synchronizer hub insert. Make sure the retainer tabs are positioned over the synchronizer hub inserts.