Suspension parts list. What's missing?

Even with a stock type front end rebuild with rubber bushings you should install Moog p/n 7103 offset bushings. Don't install them per the instructions in the package.

Install them per these instructions:


So other than positive caster, what is the benefit of doing this? Will the tires wear better? Will it cause them to prematurely wear? I'm not a suspension geometry engineer. However I do have my masters in being clueless at times. LOL!