Local and National Weather Forecasts, Radar & News WeatherBug Eaton Ford 9.75in Rear Master Install Kit. 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 Eaton only uses premium bearings For Eaton: 225C194A; 913A477 Fits 1999 2010 Applications Rear