Mesh object attached to vehicle slowly moves away

Hey, i made chaosvehicle forklift without the forks. The forks are simply attached to the skeletal mesh inside the actor (physics reasons). The forks move up and down well if im in place, but if i start driving around and moving the forks at the same time, it slowly moves forward. I tried alot of movement nodes (like add world/relativ offset, location etc. ), but transform is somehow the only way i get this working to move at all, also on a slow pace. Other methods would result in the mesh just acting like a projectile. Hope you guys can help me here :confused: