6N, 12N, 14N???

[normde2001]

No, I know those are not Ford tractor sizes, however, every time I look at pto drivelines, parts, and shields I see them as series #'s but have never heard what they pertain to. What are they and which do I need with a 20 pto hp, Cat 1 tractor?

 

[normde2001]

Give up? /forums/images/graemlins/confused.gif.... I thought so. It pertains to the diameter of the bearing cap of the cross and bearing (U-joint). Those are #'s needed to purchase pto driveline parts.
series 0675=15/16", 6N=31/32", 12N=1 1/16", 14N=1 1/8", 35N=1 1/4".