Anyone out there that can decipher Ford part numbers? I'm looking for a clutch to fit a '57 Ford T85 transmission, 11" with 10 spline. I also have a '55 Thunderbird T86 transmission that has the same size input shaft, that car used the 11" clutch also. From what I know, or think I know, there was two sizes of 10 spline transmission input shafts in the late 50's/ early 60's. One is just a little under 1" and another a little over 1". Here are some part numbers that I have run across, can anyone tell me what they fit? B6A-7550-B AH-7550-A B7C-7550-A AG=7550-A
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