Sure grip and gear install 8.25

You can get rebuild kit for 8.25 from Rockauto.com, Randy's Ring&Pinion, Dr. Diff, and even local parts stores. But wait until you tear it down because there are two different bearing sizes for carrier. Make sure which ones you have before ordering. Get service manual to see what tools you need before you decide to do it yourself. You can google to find it or here is a site you might have to register to see pictures but it gives tool list : Chrysler 8.25 rebuild writeup - JeepForum.com