I just put in a AOD in the stang, and the speedo gear is the wrong size that was in the tranny. I have 3.73s in the rear, and the car it came out of had 2.73s in it. so, that gear is not going to work anyway. All I need to know is what size gear i need and where to find one. I cheacked with the local parts store, and I think they never heard of one. thanks