[JSeery]

I think we are starting to mix things up again, there is a difference between 12 - 17 lbs of pull at .55 inches of radius and 12 - 17 in lbs.

Inch pounds is defined as 17 lbs at a distance of 1 inch. Your test is interesting and seems valid to me (and ingenious) but the numbers you are using do not equate to 12 - 17 in lbs. The numbers you are using would be 22 to 32 lbs of weight at the spline and 12 - 17 in lbs with a torque wrench.

The original Ford numbers were 12 - 17 lbs at the spline or 7 to 9.4 in lbs. I'm NOT saying that is the correct values to use, just pointing out that's how the math works out.

It would be interesting to know the history of this reference to 12 to 17 in lbs that keeps popping up, but I would be willing to bet that it is based on a misunderstanding of the original specification and transferring the pounds of pull at a distance of .55 inches to an in-lb value. This is an interesting topic (well at least to me it seems interesting).