Do you have any mods that affect the physics because haven't had any issues in my testing
i probably do just not sure what one it is, it didnt start to i changed the map im playing on from montana 4x to stevies riverbend springs edit, because after using the macdon dlc swather its doing the same thing i thought it might have been the split brake mod causing it but i did away with that and the modsettings xml and started a fresh save game and as far as i remember thats only mod i downloaded recently that affects the vehicles performance