Upgrade your Polaris RZR XP-T transmission bearings before they fail! We have seen way to many bearing failures causing thousands of dollars in damage. These are the same bearings that we use in all of our SCORE/BITD desert race transmissions and they hold up to an insane amount of abuse! This kit includes all the bearings needed to upgrade to high quality NACHI bearings that are made in Japan. If you would like the seals we stock them as well. Just select the option for seals.