Eaton Ford 9in Daytona Master Install Kit Science and Observations at the International Space Station Britannica. Eaton master installation kits make upgrading your differential easier by providing all the components needed to properly install your Eaton differential or replace your ring and pinion, in one box. Premium bearings and components ensure long life and quiet operation. Includes all necessary components to complete installation Reference Eatons application guide to confirm part fitment Fits: 3. 25 carrier bearing: LM104911; LM104950 Eaton only uses premium bearings For Eaton: 187S160A; 914A690 Rear