I presume everything on the '97 is essentially the same as the '93.
Just for the ease, I installed the '92 Supercoupe sway bar on the rear of my '93 Mark VIII and reused the endlinks. I didn't have any problems...
I did eventually put the SC endlinks on though - after several months. I noticed no difference. The SC parts do look more substantial though, so if you can get them, you might as well put them on too... it just looks like they can handle a greater load.