Assembly: Locking Collar/Synchronizer Hub for 3rd and 4th Gears together with Locking Pieces that are Hollow on the Inside
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 Volkswagen Jetta, 2009 Volkswagen Jetta, 2008 Volkswagen Jetta, 2007 Volkswagen Jetta, and 2006 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
The locking collar is pushed over the synchronizer hub.
-- Install the locking pieces and springs offset by 120°. The angled end of the spring must engage into the hollow locking piece.