I think you can draw a DRIVEN path for the track. A closed sketch, like an obround (probably). Define this sketch IN CONTEXT with the center of the two circulary arcs in the center af the tank's wheeles. After that, mate the bolts TANGENT at this sketch. You can adjustthe form of the driven pathto simulate the arrow of the track ( cosed by its weight). I don't try that, is only my opinion. After you solve problem, tell us please how you work. Thank you.