So my car turned a 100,000 miles and as you can tell from This thread some shit got fucked up.

Needed a new ground wire = $400 (with labor)
Needed new brakes and rotors = $80 (without labor did it myself w/ a buddy)

Now, it looks like I need a new CV joint. When I go in a straight line, my car makes no sound, but as soon as I turn it starts to make a clunking noise. Looking on the Internet, it looks like it is a bad CV joint - and it says they have a life of about 100,000 miles - which would make sense.

So my questions to you humble automotive enthusiasts are these:

1. If I'm replacing one should I just replace both? Because it's only the driver side one that is messed up.
2. How much would labor be to put these on?
3. I got a price for my car from advancedautoparts for 59.99 per side, does that sounds reasonable for my car: 2001 Chevy Cavalier Z24?
4. I have an uncle-in-law who is a mechanic, who will do it for free.. but I might have to wait a week or so. How long can I drive on this thing? I have heard that you can let it go for a little bit.