When I ask about ordering a half shaft , they want to know if it is a 8 mm or 12 mm version . Well all I could go on is the one bolt directley in the center of the hub on the outside of wheel I took it out and it is 8 mm . Anyone know for sure about this ? as far as I can tell it must be an 8 mm version . Thanks.

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A couple of Ford pickups F 150,250, 350 missed.
1983 240 D 256,000 miles ,auto, ac.