For servicing and repairing the suspension strut, the following tools and equipment are necessary: Strut Spring Compressor (J 34013-B), Damper Rod Clamp (J 34013-20), Alignment Rod (J 34013-197), Upper Strut Adapter (J 34013-125), Lower Strut Adapter (J 3401 Start by taking the strut off the vehicle and mounting it to the Strut Spring Compressor (J 34013-B) with the use of wing nuts at the mounting holes C and E/K, with the wide end of the adapter facing outboard. Bring the Lower Strut Adapter (J 34013-971) and Upper Strut Adapter (J 34013-125) into alignment for proper opening and closing. Install the strut in the adapters, close them and mount locking pins through the holes on the Strut Spring Compressor (J 34013-B) as well as the strut's mounting holes. Care to prevent excess spring compression and tool failure. Unscrew Strut Spring Compressor (J 34013-B) opposite of clockwise to lift the strut and compress the spring by 13mm (0.50inch) or 3-4 full rotations. Remove the strut nut, using the strut rod nut socket (j 42991), while holding the shaft with a T-45 TORX(R) bit and discard the strut nut and relieve the spring compression. To assemble, fasten the strut to the Strut Spring Compressor (J 34013-B) once again, and install the spring with correct positions of the upper and lower spring seats. Compress the spring slowly while threading the strut shaft through the top of the spring while ensuring that the Alignment Rod (J 34013-197) is straight with the strut. Install a new strut nut to the strut rod, torque to 75 Nm (55 ft. lbs.) with the Strut Rod Nut Socket (J 42991) while holding the shaft with a T-45 TORX® bit. Lastly, take all tools out of the Strut Spring Compressor (J 34013-B) and return the strut to the automobile, then readjust the rear wheel alignment.