I ran into that same exact problem. I snapped off one bolt on each side of my '96. I actually had to run without shocks for a while until I could fix it.
This is what I did:
I removed my rear sway bar completely and took the end brackets off that tied the top of the spring to the sway bar itself.
Then, I got a metal sleeve to fit in the bushings on the shocks. Cut that sleeve down to fit even with the edges of the bushings.
Then fit the shock into the bracket. After that, you just find a bolt that'll slide through and leave room for a nut.
Then I welded it onto the underside where the shocks used to mount, but first I made sure to fill in the holes left by the nuts that were removed.
This isn't the most detailed post about doing this. Search around and I'm sure you can find a write-up on this topic.
HTH,
David