I can't get to my A body to measure the car for myself.
It would be a lot easier measure if the TB is removed.
What i need is the number of radial degrees, or two sides of the triangle to calculate the degrees.
What I am searching for is the amount the LCA rotates from full jounce to full compression fully against the LCA bumper.
I am not in a hurry
I am guessing 15?Degrees, but a guess here doesn't cut it.

This helps make sure the TB's are not over stressed or how much they are stressed.

Thanks for any help.

So you're asking for the clocking of the torsion bar ends? That varies by bar diameter.

Or are you asking for a wheel travel dimension? Though I don't see how this can help determine bar fatigue.

I am looking for the total amount an A body TB rotates in degrees with full possible wheel travel.
Clocking is not a factor here,
In calculating stress loading of the bar, it requires a number for the amount of degrees the bar twists.