Hmmm, an '87.
I had a '95 for about 6 years (bought it new before college).
Had 86,000 miles on it when I finally let it go (and 3 trannys later).
Loved that Jeep. Had it been more reliable, I'd have another one in the fleet right now.

You'll want to (if you haven't already) request catalogs from:
Quadratec - http://www.quadratec.com/
4wd Hardware - http://www.4wd.com/
And so on. The mods/goodies never end with Jeeps.

Good luck.