Installing Rear Spring Strut (Steel Springs)

Information 

• Tighten all four screws for the spring strut attachment at the top (damper housing top) to the specified tightening torque! To do this, use an extension and a universal joint for the inner fastening screws! 
• The entire threaded parts of 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 -X-  , from lower edge of wing to centre of wheel → Control value: 506 N/mm+/-10 mm corresponds to vehicle position. 
  Fig 1: Identifying Vehicle Position Mark

  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
• Carry out a visual inspection of all parts! 
• Replace self-locking nuts! 
• Replace all expansion screws (screws fitted using torque angle tightening procedure)! 
• Observe correct tightening torques and torque angle →  WM 4200TW TIGHTENING TORQUES FOR REAR AXLE  

1. Insert spring strut into the vehicle. When doing this, tighten the rear inner fastening screws (from the damper housing at top) with an extension and universal joint. Tighten all four screws to 60 Nm (44 ft lbs.)!
2. Install lower spring strut attachment with connecting link. While doing so, use the transmission jack to fit the fastening screw. Tighten fastening screw to the correct tightening torque and torque angle! Do not damage the brake cover plate.
   Fig 2: Placing Brake Cover Plate

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.