ClassicCar

These things are hard to measure because there are no straight edges to reference your dimesions from, except the center. Also they flex and are a bit bendy too. In my opinion there is only one style that looks right on a step down Hudson and it's the design that most people use. I remake these and I might start making the brackets as well. Let me try and give you some dimesions but keep in mind that the visor does flex and you might have the visor there that you want and the figures I give you could be as much as a half inch different. It might be better yet to see a photo of the visor you want to buy. But, here goes a quick sketch. ....Hope this helps. By the way, measure it up-side down. They hold still a little better that way.