The trip lever for the drain in my bath tub is very old (I'm guessing 30+ years) and has begun corroding and rusting. It's definitely time to replace it. I plan to replace the entire trip lever along with the trim plate, linkage, and drain plug.
Any tips for replacing it with a new one? What should I look for when buying the replacement parts? Are they all standard or do I need to be sure to look for a particular size to fit the existing tub? Any gotchas I should be aware of while removing the old one or installing the new one?