Hello Tom,
Sorry to hear about your misfortune. I hope you and your car are back up and running soon. If you need answers to the failure of your rear suspension or any other area, please contact me by e-mail(tgw@packereng.com). I work for Packer Engineering and we are involved with all sorts of failure analysis type of situations. Check us out at our website :
www.packerengineering.com
Good luck, Tom.