I think as long as you've a trunnion rear ended LTS then you should be OK. No idea on the earlier versions. Just to be clear, both shocks have threaded air cans as standard, so you can't use a normal rear shock. I've a couple of spare shocks for each of the builds so if you decide you want to go down that route, let me know as I could let one go.
Also, the earlier fox rear shock I have had a compatible trunnion for the sts so didn't need modifying. Sadly the newer threaded body shocks are too wide to fit, hence the jekyll mod.