2002 Ford Explorer Rear End, Can I up grade with better rear end?

I need to Up Grade to better Rear End that does not squeal and make noise. What is recommended? Any thing out there?

What you really need is to have your rebuilt Thats why it sequels like a pig And yes you can throw a 9inch under it after having all kinds of expensive mods done to make it fit including a drive shaft But you can cave a ton of time and money by just rebuilding yours