Workshop ManualsOriginal source
Hardtop and Wheel Storage System - Assembly|Page 7214
Add to repair workspace
Page 6
4.2.2 Lift retaining spring (figure 6, enlarged view) on the short cross tube. Align windstop on the retaining spring.
4.2.3 Release the retaining spring, ensuring that the windstop ball socket is seated securely in the holder.
4.2.4 When removing the windstop, lift the retaining spring and remove the windstop from the short cross tube.
Fit the windstop on the vehicle as described in the Driver's Manual.
Reference:
911 Carrera (996) Driver's Manual, chapter about "Hardtop".
This is a source reference. Confirm exact model applicability in the original material.