Econoline E350 1 Ton V8-5.4L SOHC VIN L (1999)
Wheel Bearing: Description and Operation
Wheel Hubs and Bearings
The rear hub is supported or floats on the axle spindle on two opposed tapered roller bearings. The rear hub is retained on the spindle by a ratcheting nut
that is tabbed to a slot on the spindle. A seal is installed inboard of the inner rear wheel bearing to keep the rear axle and wheel bearing lubricant from
the brake components. The full-floating rear axles on E-350 vehicles have the brake discs mounted outboard of the rear hub, permitting brake disc
removal for brake inspection without the need to remove the rear hub.
The rear wheel bearings are packed with a lithium-base grease, Premium Long-Life Grease XG-1-C or equivalent meeting Ford specification
ESA-M1C75-B, to provide initial lubrication until axle lubricant flows into the rear hubs and rear wheel bearing inner cone and rollers during vehicle
operation.
