Looking for a little help!

Hiiiii all,

I have a 1965 plymouth valiant station wagon that needs some maintenance. Never done it myself but I'm gonna give it a go. If you could all spare some info that'd be great!

First, there's a belt making a terrible squeaking sound. A friend suggested checking the power steering reservoir, I did, it's topped up. Switching out the belt was the next suggestion. Any links or tips for doing so?

I was going to spray some WD40 and see if that did the trick but I was also told that increases the chance of the belt ripping. Is this true?