The web links did not work for me, but the answer on your parts as noted above are sway bar end links. They come in kits, 1 per side of the truck. The kit will have 4 rubber or poly bushing (look like fat doughnuts), 8 metal washers, a steel or fiberglass tube, and 2 nuts with a long bolt threaded on both ends.
Getting the old one off can be a bit of a pain since the are almost universally rusted tight. Easiest route is probably a pair of vice grips to hold it tight and a minute or so with a hack saw to cut the old bolt between the sleeve and control arm. Putting on a new one takes all of 3 minutes with 2 wrenches. Tires stay on the truck, usually easier when sitting on level ground without jacking up the front end. People change them out in parts store parking lots all the time.
