[strictlypersonl]

Originally Posted by Mdman352

I would say the tubing is much stronger than the original "chicken bone" half shafts

I'd have to see the specs of the tubing. A quick calculation comparing the solid shaft to a 2.5" x .075"W tube shows their (theoretical) strength to be nearly identical. Any imperfection in a thin-wall tube can reduce its ideal strength by a whole bunch too. Failures will almost always start where there are non-uniform anomalies in the structure.

The smaller-diameter shaft has another advantage: It is more torsionally flexible, reducing the maximum stress on all the components in the path.