Look first a demo movie !!!!!!
http://youtu.be/Gb6HDSIb0ls

This mod allows the hydraulics on any vehicle by pressing F5.


Controls:
- NUMPAD 8: front wheels
- NUMPAD 4: left wheels
- NUMPAD 2: back wheels
- NUMPAD 6: right wheels
- NUMPAD 5: all wheels

You can configure the keys from the xml file provided.
Watch the video below for a demo!