Greg, thanks for posting that. I hadn't heard that Energy Suspension had those available. That'll be nice to keep the costs down on replacement. I can't get the application guide to work for 4Runners on their web page so I can't confirm that it's the same part, but it probably is.

I can see the installation instruction sheet is at this link. It's for part #8.3115R with instrucions #17232.
http://www.energysuspension.com/assets/files/pdf/17232.pdf