2007 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 2007 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. 2007 Lincoln Navigator Differential Rebuild Kit comes new OEM 2007 Lincoln Navigator Differential Rebuild Kit aftermarket new 2007 Lincoln Navigator Differential Rebuild Kit of remanufactured 2007 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.