In development. We are working on developing a rear drive shaft for the rear of the Ford Tremor, to eliminate the carrier bearing, similar to the Ranger shaft we sell here. We are still in the prototype and development phase. If this shaft makes it to production it will likely not be available until sometime in early 2024. You can click the green "Notify me when available" button on the left side of this page to sign up for an email notification when/if this shaft becomes available.