I am selling the running board side steps from my truck. No dings or dents etc. Ideal for a truck with a lift kit. The mountain three spots along the frame. But you could probably do with just two. On Center, the bolt holes from the front mount to the middle mount are 30.5 in but there is 1 in of play in either direction as you can see in picture number three. All of the bolt holes on the mounts are slotted so you have some room to work with on the mounting. On Center from the middle mount to the back mount it is 21.0 in. I am only selling these because I am 6'4 tall and I don't need a step to get in my truck. If I ever put a lift kit on my truck I may regret selling them but since I have no plans to do that I will sell them instead of storing them. They come with the mounting brackets that bolt to the frame. $100