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If the truck has ESOF (electronic shift on the fly) just let up on the throttle and turn the switch to 2WD, the hubs will unlock by themselves assuming the manual override knobs out at the wheels have not been set to "lock". If so, those will have to be turned to "unlock" as well.

If non ESOF, make sure the floor shifter is in the 2 wheel drive position, then get out and turn the hubs on the wheels to "unlock".

If the above does not work for either type of system , there is an issue with the manual hub locks at the wheels and you will need to get them looked at.

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Q: How do you disengage shift on the fly hubs?
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