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How do lock out hubs work on a Chevy 4 wheel drive?

Lock out hubs are a manual way of disabling the front axle of a four-wheel drive vehicle. This can be done to improve fuel economy, reduce tire wear, and improve handling on dry roads.

To engage the lock out hubs, the driver must get out of the vehicle and turn a dial or lever on each hub. This will disengage the axle from the differential, so that it will not turn even when the vehicle is in four-wheel drive.

To disengage the lock out hubs, the driver must simply get out of the vehicle and turn the dial or lever on each hub back to its original position. This will reengage the axle with the differential, so that it will turn when the vehicle is in four-wheel drive.

Lock out hubs are a relatively simple and inexpensive way to improve the fuel efficiency and handling of a four-wheel drive vehicle. However, they do require the driver to get out of the vehicle to engage and disengage them.

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