Thank you,
your FBX works like a charm. Still there are few things i dont realy understand. When i open your export in 3DS max i see that the scale of Vehicle_Base is 39,37%. Scale of each wheel is 100%.
In my export Vehicle_Base was 100% same as wheels, which i understand is the way it should be? This makes me suspect some kind of bug within my 3DS, because i made XForm reset several times. I assume that you see vehicle_base as 100% scale yourself?
I have even tried simplified model: box with 4 cylinders as wheels. I did no scaling on any of the objects. Still, after export/import i experienced same thing.
Thanks again, VB.