Well It's not that I have the wrong piece. It's the trim that came on the car. Originally it had trim on top of the doors and top of the quarter panels at the Quarter windows. I have taken that trim off and welded up the holes. The roof rail trim comes down at the back of the quarter window and the stainless stops just short of reaching the quarter panel where the trim would meet it. So I was thinking that say a 170 trim without the upper trim on the doors and quarter might be different than the 270 roof rail trim.