The problem with the MaxD3.Truck is because you are using rigs of rods 0.38
Because the v4 pack is made for rigs of rods 0.37.
So it isn't crazy.
Download rigs of rods 0.37 and it's over.
http://sim-monsters.com/index.php?/files/file/294-rigs-of-rods-037117/
The download link ;D