my right rear wheel bearing went out on me and i went to napa and they said $200 for a new one, i went home and looked up wheel bearings and found a rear wheel bearing for my 95 gt convertible for $80, then i look in my chiltons manual and it says "On all models the rear wheel bearing can not be separated from the rear hub. If the bearing is bad, the entire hub must be replaced" why does that site sell just the bearing

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