K. I have a 97SR5 4Runner.
In the rear I have an 8". But is my front 8", or 7.5"? Im looking at gears, but im not sure.. And apparently the 89-95 axles are the same as my 4runners right? So I could use those gears?
Im lookin at these. http://www.4wheelparts.com/PDT291682.aspx once I get a lift and stuff. But...?

 

The rear is fine but the front diffs on 96-02 4runners have a reverse cut R&P. Make sure you get the right thing. The one you linked looks like it is for 86-95.