Is the swaybar stud supposed to be much smaller that the hole in the end of the swaybar? I attached a picture, it looks like it must be missing something to keep it from moving around.

that hole in the end of the swaybar is for the bushings to sit in.

Here is a diagram of an installatiopn, and a picture of a set of what you need for a complete set of end links.

You need:

8 bushings (rubber or polyurethane)

8 cupped washers if using polyurethane bushings

The images below show polyeurathane bushing kits.

Courtesy of http://www.energysuspension.com/index.html

Gotcha,, I should have looked closer at the new urethane, it has a lip that will set right into the "loop" on the end of the swaybar.

Thanks