Mack vision square body dump truck

hello here i have you my second version of my mack vision dump truck here i have changed the bed and gate and fixed fill planes and fixed the lights and i also added some strobes you can activate them using the home key and the cylinder does show inside of the bed witch i dont know how to fix and other then that she now holds 90000 liters and i also made the truck go faster when loaded and empty can get to your destination faster hope you enjoy the mod.