I replaced the old large strut bolts and nuts with new ones. If you do, you will also need a 24mm wrench / socket, as the old ones are 22mm. Here are the part numbers for each side only:

Qty 2 – 31331096307 Bolt
Qty 2 – 07119906287 Nut

Here are some tools that you may need, you can purchase them here:
18mm Cone Wrench – http://amzn.to/SCz7yr
12mm flare wrench – http://amzn.to/RNYG1K

The struts are re-manufactured Arnott Industries and come with a life-time warranty.

Note: THE USE OF THIS DIY IS FOR YOUR REFERENCE ONLY. I DISCLAIM ALL LIABILITY FOR DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OR INJURIES THAT RESULT FROM ANY USE OF THE EXAMPLES, INSTRUCTIONS OR OTHER INFORMATION IN THIS DIY.