[my427cobra]

Thanks again A-snake. Great info. Years ago I measured the width between the ferrules on a Shelby CSX 4000 aluminum body series car under construction at a local dealer. The dimension was 48".

I got a Cobra Restorer's top with the car and later was able to get a Robbin's top and the top bows are each a little different and the ends where they go into the body ferrules measure 50" and 52" respectively.

Maybe they're meant to be bent inward slightly to provide some tension in the curved portion of the bows?

Cheers
Greg