Pressing off operating sleeve and synchronizer hub for 3rd and 4th gear

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2002 Volkswagen Cabrio, 2001 Volkswagen Cabrio, 2000 Volkswagen Cabrio, 1999 Volkswagen Jetta, and 1999 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.