If I have a bone stock 2002 mustang v6 is this the right kind of gears to get?

http://www.americanmuscle.com/v6gears.html

and is this the install kit?

http://www.americanmuscle.com/rearendrebuild1.html

Yes thats all you will need for the gears also get t -lok so you can spin both wheels ( FORD T-LOK or posi should they call it)

can you give me a link to a good t-lok?

and in order to get the best results from the 4.10s - i should get the t-lok?

I got the same set up as you got (just arrived today), and still waiting on t loc! Here it is:

http://www.stangmods.com/V6-Mustang-Traction-Loc-p/00351-m4204c75.htm