Installing Rear Front-Axle Support

→ Wear personal protective gear.

→ Do not raise the wheel suspension higher than the normal vehicle position (vehicle resting on wheels).

1. Install anti-roll-bar mount according to the marking, along with the anti-roll bar.

   The marking -IN-  must be pointing to the center of the vehicle, while the marking -OUT-  must be pointing to the outside of the vehicle.

   Fig 1: Identifying Marking On Anti-Roll-Bar Mount

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2. Position the anti-roll bar before tightening the fastening screws on the anti-roll-bar mount (= fastening screws for front-axle support) so that the highest point of the anti-roll bar is positioned at a distance from the frame support (not  the fold!) of -1-  .

   Dimension -1-  on a normal chassis is: → Control value: 93 mm 

   Dimension -1-  on chassis with PDCC is: → Control value: 86 mm 

   Fig 2: Installation Dimension Of PDCC Anti-Roll Bar

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   Information 

   • All screws and threaded joints on the axle must be tightened in vehicle position. Vehicle position means: vehicle standing on its wheels, or the wheel suspension is raised with a universal vehicle lift. Dimension -1-  , from lower edge of wing to center of axle corresponds to vehicle position. The current height can be found in →  4495TW ADJUSTMENT VALUES FOR SUSPENSION ALIGNMENT  . Always observe the following points! 
     Fig 3: Identifying Dimension 1 - Centre Of Wheel To Lower Edge Of Wing (Front Axle)

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   • On vehicles with air springs, the respective air spring must be bled using the Porsche System Tester. → 4301IN BLEEDING AND FILLING THE LEVELLING SYSTEM
   • Vehicle position can be set by carefully raising the relevant wheel bearing housing. 
   • Use an intermediate layer (hard rubber)! Do not damage the brake cover plate. 
     Fig 4: Lifting Wheel Carrier (Example Without Wheel And Brake Disc)

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   • Screws and nuts are Geomet-coated and must not be greased. 
   • Grease the splines of the drive shaft slightly with aluminum paste Optimoly TA. 
   • Drive shafts must not be left hanging from the joint stop! Tie them up. 
3. The front-axle support is installed in reverse order to removal.
   Fig 5: Identifying Mounting For Front-Axle Support And Screws

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   1. 1  - Tightening torque 65 Nm (48 ftlb.) 
   2. 2  - Tightening torque 90 Nm (67 ftlb.) +150° 
   3. 3  - Tightening torque 65 Nm (48 ftlb.) 
   4. 4 front  - Tightening torque 90 Nm (67 ftlb.) +180° 
   5. 4 back  - Tightening torque 90 Nm (67 ftlb.) +90° 
   6. 5  - Tightening torque 65 Nm (48 ftlb.)