I can't tell how it attaches (on a smartphone) or adjusts OC.
It hooks on the bottom back of the step with a J shaped strap. The step itself has two tubes that telescope inside the upper brackets and have pins to hold the step tubes.
Thanks for all the reply's Forest River is sending brackets to my dealer this week. They say you remove the old brackets and bolt these on I thinking to the frame and trim back the sheet metal and mount the steps. Not sure how I feel about drilling the frame we will see on Monday.