2012 Lincoln Navigator Differential Rebuild Kit RWD - Ford 9.75 in. Rear - Differential Rebuild Kit - Timken Bearings - Universal kit - Includes both M88048 & HM89443 Outer Pinion Bearings - Fits 1.968 in. Diameter Pinion Shaft - Rear guaranteed to replace your current 2012 Lincoln Navigator Differential Rebuild Kit RWD - Ford 9.75 in. Rear - Differential Rebuild Kit - Timken Bearings - Universal kit - Includes both M88048 & HM89443 Outer Pinion Bearings - Fits 1.968 in. Diameter Pinion Shaft - Rear. 2012 Lincoln Navigator Differential Rebuild Kit comes new OEM 2012 Lincoln Navigator Differential Rebuild Kit aftermarket new 2012 Lincoln Navigator Differential Rebuild Kit of remanufactured 2012 Lincoln Navigator Differential Rebuild Kit RWD - Ford 9.75 in. Rear - Differential Rebuild Kit - Timken Bearings - Universal kit - Includes both M88048 & HM89443 Outer Pinion Bearings - Fits 1.968 in. Diameter Pinion Shaft - Rear.