Does any one have any information on what length a Trico blade holders would have been used on a 12-2-67 Metuchen 68 Mustang. When I got this project one blade holder was missing. I went to a salvage yard and bought one. When I got back to the car I found the one I got was one inch shorter that the one on the car. When compared to our other cars the new one that is 14 3/4 is the same. The one on the car is the correct domed style but is 15 3/4. Was it from a larger Ford product?