Auto Automatic Locking Locks Hub (1pc) Front for Ford Excursion F250 F450 F350 F550 Super Duty This listing is for 1pc Hub. Please select 2pc if you need a pair. Ford Replacement Auto Locking Hub Replaces Part 1C3Z3B396CB,600-203 Brand NEW Hub Fits either LH (Driver Side) or RH (Passenger Side) FRONT Fits 4WD Models with Auto Locking Hubs only This item is backed by a 10 Year Warranty from Sylvan. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge (excludes shipping charges) for the original purchaser.