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What’s This Button Do? H4 Button.

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H4 Button.

Vehicle: Some part-time Toyota Landcruisers.

H4 Button
H4 Button
  • Part-time 4wd with a H4 button; this button selects H4.
  • When going from the H2 position to H4,  just press the button do not move the lever (the lever is to select and deselect to and from L4).
  • Makes shifting on the fly easy as long as free wheeling hubs are locked and the vehicle is in a straight line.

NOTE: Ensure free wheeling hubs are LOCKED before pushing the H4 button.  Especially on the fly otherwise you can damage your transfer box.

 

Part-time 4wd Transfer Box Lever
Part-time 4wd Transfer Box Lever

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About Mick Farmer

For the last 20 years, I have been the lead trainer /director for OnCourse. Have played a leading role in developing their courses into, probably, the best off road training courses, globally.