Jest to poradnik jak dodać mod orki sprawdzałem wpisy z modem fendt który ma ten mod orki i wpisy w xml się zgadzają i w GE też także pewnie będzie działał

To wycinek pdf-a z poradnikiem
4. Modifications in vehicle xml file
General structure of components code:
<components count="5">
<!-- main component -->
<component1 centerOfMass="0 0 0" solverIterationCount="190" />
<!-- front right wheel component -->
<component2 centerOfMass="0 -0.8 0" solverIterationCount="190" />
<!-- front left wheel component -->
<component3 centerOfMass="0 -0.8 0" solverIterationCount="190" />
<!-- back right wheel component -->
<component4 centerOfMass="0 -0.8 0" solverIterationCount="190" />
<!-- back left wheel component -->
<component5 centerOfMass="0 -0.8 0" solverIterationCount="190" />
<!-- front right wheel joint (componentJointIndex = 1) -->
<joint component1="0" component2="1" index="1>0" rotLimit="0 0 0" transLimit="0 0 0" breakable="false"/>
<!-- front left wheel joint (componentJointIndex = 2) -->
<joint component1="0" component2="2" index="2>0" rotLimit="0 0 0" transLimit="0 0 0" breakable="false"/>
<!-- back right wheel joint (componentJointIndex = 3) -->
<joint component1="0" component2="3" index="3>0" rotLimit="0 0 0" transLimit="0 0 0" breakable="false"/>
<!-- back left wheel joint (componentJointIndex = 4) -->
<joint component1="0" component2="4" index="4>0" rotLimit="0 0 0" transLimit="0 0 0" breakable="false"/>
<!-- disable collisions between existing components -->
<collisionPair component1="0" component2="1" enabled="false"/>
<collisionPair component1="0" component2="2" enabled="false"/>
<collisionPair component1="0" component2="3" enabled="false"/>
<collisionPair component1="0" component2="4" enabled="false"/>
</components>

reszta do pobrania tu http://www22.zippyshare.com/v/73969081/file.html

Jak ktoś sprawdzi to proszę dać znać czy działa