OK... Finally pulled the pan, dropped the old bar out, etc.
The "stopper" is different. It's a metal ring (probably 1.25" ID, originally) that has been crimped down onto the bar in the appropriate spot.
So... should I go to the hardware store and get some 1" ID rubber tubing and cinch it with pipe clamps or should I give this metal ring idea a go?
Opinions are welcome...
http://forums.dfwmiata.com/Timage/swaybarstopper.jpg