Nissan Technical Advisor 12/20/2010First, loosen the lug nuts on the rear wheels with the lug-nut wrench. You should find the lug-nut wrench in the trunk or hatch of your vehicle. Jack the vehicle and place it on jack stands. Remove the wheels. Follow one of the struts to where it meets the knuckle. Note that it is pinched in the knuckle by two bolts holding it in place. Remove those two bolts with a ratchet on one end and a wrench on the other to hold the nut. Pull the strut out of the knuckle. Open the trunk or hatch and locate the cover for the strut assembly. It will be circular in shape and directly above the strut assembly. To remove the cover, pry between the cover and the interior trim with a flathead screwdriver. Place one side of the strut compressor on the upper portion of the spring and the other side of the strut compressor on the lowest portion of the spring. Tighten the compressor with a ratchet. This relieves pressure on the assembly and allows you to remove the strut. If you don't use a strut compressor, you can suffer serious injury or death from the strut hardware shooting dangerously upward toward you. Place a wrench on the nut holding the strut tower on the strut, then place locking pliers on the top of the strut so that the strut doesn't spin when you try to remove the nut. Loosen the nut with your left hand and hold the locking pliers in the right hand. Pull the strut out of the assembly and replace it with the new one. Tighten the nut that holds the strut to the strut tower. Slowly decompress the spring until it pushes against the strut at the bottom and the strut tower at the top. Place the assembly in the wheel well, push the studs of the strut assembly through the sheet metal in the trunk or hatch and then screw the nuts onto the threads to hold the strut assembly up. Tighten the nuts with a ratchet. Place the strut in the knuckle and tighten the two bolts that you removed earlier. Place the wheel back on. Raise the vehicle high enough to clear the jack stands. Remove the jack stands and lower the Nissan to the ground.