We used one in a 37 which is similar to the 41-47.1 with both being roll out units. It fit on the outer ledge and was held in with a modern windshield kit (adhesive). The hinge arm holes had to be filled and I didn't like the gap between the glass and the dash/window step. Our glass man put a black border around the edge to hide some of the gap. It did stop leaks and air noise.


Evan