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Home >> Porsche >> 2011 >> 911 Speedster >> Repair and Diagnosis >> Drivelines & Axles >> Wheel Hubs >> 42 - Rear Wheel Suspension, Drive Shafts -- CARRERA (997) >> WM 427137 Disassembling And Assembling Rear Spring Strut (911 Gt3 RS, 911 Gt2, 911 Gt3) >> Disassembling And Assembling Rear Spring Strut >> Assembling Rear Spring Strut

Assembling Rear Spring Strut

  1. Clamp the spring strut at a suitable place in the vice (use protective jaws).

    Information 

    • Coil springs are only available in pairs (as a set). 
  2. If the vibration damper is to be replaced, move the concave washer/height-adjusting nut to the same position as on the old vibration damper (copy the actual dimension -X-  to the new vibration damper).

    Use special tool hook wrench 9647  for this purpose. Required for adjusting the vehicle height (dimension -X-  ) and for subsequently tightening the lock nut (grooved nut).

    Tighten lock nut (grooved nut) to 50 Nm (37 ftlb.) using a torque wrench.

    Fig 1: Identifying Adjustment Dimension On Spring Strut - Up To Model 2009
    G09825754Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  3. Fit components onto the piston rod or on the spring strut.

    Place the lug of the spring-strut mount in the groove of the piston rod (twist lock of piston rod opposite the supporting mount).

    Use new M12 x 1 lock nuts.

  4. Align (position) the spring-strut mount with respect to the vibration damper. -lug-  of spring-strut mount must line up with the middle fork of the lower vibration damper.
    Fig 2: Positioning Spring-Strut Mount (Example, 911 Carrera)
    G09825755Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Information 

    • There is no need to counter at the piston rod because there is a strong grip between the spring-strut mount and piston rod. 
  5. Tighten lock nut to 32 Nm (24 ftlb.). Counter at the bolts (M8) on the spring-strut mount at the same time.
    Fig 3: Tightening Bolt On Spring-Strut Mount
    G09825756Courtesy of PORSCHE CARS NORTH AMERICA, INC.