Expedition 4WD V8-281 4.6L SOHC (1998)
3. With pinion depth set and the pinion installed, place the differential case in the rear axle housing.
4. Install a (nominal) shim on the left side.
5. CAUTION: The bearing caps must be installed in their identical locations and positions.
NOTE: Apply pressure toward the left side to make sure the left bearing cap is seated.
Install the left bearing cap, and loosely install the bearing cap bolts.
6. Install progressively larger shims on the right side until the largest shim selected can be assembled by hand.