In this thread is what Erik B did on his 97 runner, he used the torsion type sway bars that he bought the parts at Rock Equipment in Lincoln, CA. This is a big thread so it will take some digging!

http://www.pirate4x4.com/forum/toyota-tacoma/609488-my-new-trail-street-rig-build-97-4runner.html

Also on his web page it shows the swaybar he ran on his 86 runner.

http://home.4x4wire.com/erik/

Some people say a swaybar will make no difference on a rig, I am here to tell you they make a whole lot of difference in the handleing, especally if it is a DD.