While this is technically correct, it'* my understanding that getting the little buggers out can be a real PITA. They are often rusted and need to be cut off with a sawzall or something. I've heard a lot of people complain about them, including my dealership that I had to mine. While I agree completely that endlinks are a worthy upgrade (the originals are often failing after a few years), it isn't always an easy removal of a single bolt. You can search on Energy Suspension Endlinks to read the stories of several members who did their own. If you do yours, have a backup line on some alternative removal tools if the single bolt doesn't want to come off. (Chisels, air tools, hacksaw, and sawzall are good backups.)

This depends entirely upon the car. Mine came off with no trouble at all because the bolts simply broke when i put a 20" breaker bar on the socket.

Lol! So Bugsi is correct to warn of the potential for a little difficulty during replacement...