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The Ranger has remote free-wheeling hubs to disconnect the front wheels from the front axle when 4wd is disengaged, reducing rolling resistance and hence tyre wear and fuel consumption.
When you engage 4wd initially (when stationary) the free wheeling hubs engage automatically. Once these are engaged it is possible to shift between 2H and 4H and back when moving (e.g. when going between solid road and snow, since without a centre differential you can't safely drive the Ranger on-road in 4x4).
This is why the free-wheeling hubs do not disengage automatically. To disengage them you press the RFW switch. This is the only time this switch does anything. If you drive > 60mph the RFW light will flash to remind you to press the button to disengage the free wheeling hubs.
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∙ 13y ago
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