Preparing Rear Side Member For Installation

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Prepare rear side member and clean welding and sealing areas.
1. 1.1. Grind both sides of the connecting flanges on the rear side member in the marked areas until bare.
  
  Fig 1: Identifying Contact Area Of Rear Side Member For Installation
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  
  Fig 2: Identifying Contact Area Of Rear Side Member For Installation (Inside View)
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  
  Fig 3: Identifying Contact Area Of Rear Side Member For Installation (Outside View)
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Prepare floor section and clean welding and sealing areas.
1. 2.1. Grind the connecting flanges of the floor section in the marked areas until bare.
  
  Fig 4: Identifying Floor Section And Clean Welding And Sealing Areas
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. 2.2. Punch 7-mm holes in the fastening flanges of the floor section using a hole punch (area -A- ). Maintain spacing as on the old part.
3. 2.3. Drill 7-mm holes in the fastening flanges of the floor section (area -B- ). Maintain spacing as on the old part.
Information

Do not apply zinc powder paint to the bonding areas.
Coat all spot-weld flange areas with zinc powder paint.