Unlike the other forum, I *think* it's ok to post a link to a competing forum IIRC.
If not, well I'm sure to be admonished for it.
Jimlab did a writeup when he sold 'unobtanium' bushings.
Different bushings, same process.
Unobtanium bushing install
Given the nature of the interwebs, it's a good idea to DL the whole thread to your own computer, where you can be sure to have it when you need it.