I have a 69 GT 350 that I purchased last summer. I've had a few Mustangs over the years but this is my first Shelby and I am still finding my way. It originally came with a four speed wide ratio transmission data plate code 5. During the restoration of the car in the mid 80s a 5 speed Doug Nash transmission was installed. Its great fun to drive and I enjoy the 5 speed but am considering finding an original transmission and putting the car back to the way it came. My questions; I have read that the wide ratio trans was not a popular transmission, why was that? And any advice on where to start looking for that transmission? Thanks.