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. Eaton Master Differential Install Kit; Rear; GM 9.5 in.; 14 Cover Bolts; 12 Ring Gear Bolts; 33 Axle Spline; 30 Pinion Spline; Standard Rotation; Fits 2014 And Newer Applications;