91 sub Legacy

So I have a few issues with my car coming up, well today at random my car just died coming to a stop I haven't had any problems with my car till now, and after it started again immediately after it died, but their seemed to be a squeal noise form under the hood. Also my car seems to also be making a small pop sound when I turn I think that the CV joint but it also just started very very slightly shaking barely noticeable.

and any idea what it would cost to repair the CV joint?
thank you