So I built this chassis + driving wheels and valve gear for a steam locomotive but when I test the game. the main coupling rods (white ones) couple the wheels together and then they struggle to rotate bc of it. they run perfectly fine without rods but they go all over the place.
ALL collisions are off except for the wheels, those gliders between the track and the green bsepart that my character is sitting on. So I dont know whats happening its getting really annoying