A 833 output shaft question 26 spline

That was from a 727. Stock precision u-joint.

Point. If an automatic can do this? An A833 would likely be rougher on the parts. Thus I believe is the weak point of the driveline.
That was from a 727. Stock precision u-joint.

Point. If an automatic can do this? An A833 would likely be rougher on the parts. Thus I believe is the weak point of the driveline.
But your 727 has a 29 0r 30 spline shaft so much stronger