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Ford Bronco

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In this application, a locker is necessary to achieve the driving routes this Bronco owner has chosen. When making climbs such as this, vehicle weight can be biased to one side and a tire can lift off the ground. If a tire lifts off the ground in this extreme scenario, only a locking differential will allow the touching tire to propel the vehicle forward. A limited-slip differential would likely not be effective enough to move the vehicle once a tire goes airborne.