Drive line angles

[Mercury100]

Single drive shaft truck.
Engine/ trans angle is 3.3 degrees down from the front
drive shaft angle is 6 degrees down from the front.
Diff pinion angle is 2 degrees down from the front
So doing the math the front joint angle is 2.7 degrees
Rear ujoint angle is 4 degrees.
difference between front and rear joint angles is 1.3 degrees.
this seems close to optimal.
Under load the pinion should move to 4 degrees pinion angle.
This would put the front joint angle still at 2.7
Rear would be 2 degrees.
This all looks good to me.
I did the math with a 5degree driveshaft angle (load in the box) All still looked good.
Let me know of your thoughts everyone.
Thanks in advance

[Mercury100]

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