Quote:
Originally Posted by whirnot
If you measured that with the drive shaft horizontal, you have to support the end of the shaft, and calculate the resistance of that support.
The bearings are slightly apart and if you add an overhung load such as the drive shaft, you are putting the bearings in a bind. The reading will not be accurate. It is best to have the drive shaft vertical and measure the torque with a beam style torque Wrench.
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Excellent point, and an excuse for a new tool! Actually, I measured on the Mitchell stub shaft, which is maybe a quarter the length of a driveshaft. I did not feel any binding effect, which I suspect I would have noticed on a full length driveshaft.