Shift Linkage: Description and Operation

3412 Gearshift Mechanism

Cable Shifting







Similar to other Porsche vehicles, the 911 Carrera/S (997) also employs cable shifting. This prevents the transfer of engine movements and vibrations to the shift lever. As opposed to the previous shift linkage, shift and selector cables (which are able to withstand tension and pressure), form the connection between shift lever and transmission. The advantages of this system is reduced space requirements, low weight and above all, the effective prevention of the transfer of engine movements or vibrations to the shift lever, without impairing shifting precision.







A shift throw reduction of approx. 15% has been achieved on the new 911 Carrera/S models while retaining the same ergonomic characteristics by moving the deflection point on the shift lever (see Synchronization). On top of this play in the shift module under the shift lever has been reduced, resulting in a more precise gear shifting gate.

To allow preselection of the gear level, the selector cable is connected to the selector lever shaft (B). The shift cable is connected to the outer shift lever (A) to engage a gear.

Shift Module