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26 spine
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  1. 1996-2004 Mustang Classifieds
    I have a 3550 TKO-II that I am putting up for sale. This is a 26 spine input, 31 spine output. Its low mileage tranny used only at track, has about 3K on it. I have a Steeda Tri-Ax, the drive shaft with 31 spine yoke, and I have a lakewood bell that mounts up to a 4.6/5.4. I am going 6 speed...
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