Where can I find rear shocks for a 72 FX that have a 5/8" mounting bushing? All of the ones I find have 1/2" mounting bushings with a metal sleeve in them. The shock mount studs on the bike are 5/8"

My shock bushings have no metal sleeve in them and the rubber bushing rides directly on the mount stud.

 

Maybe you can change the studs to 1/2 inch, just a thought...

 

we have used nylon bar stock in the past and made bushing to fit

 

That may be the direction to go. Thanks