Torsen = torque biasing.


If the gears are breaking....only real answer is bigger gears.

As for the prop....WOW !!

The splines twisting, yes, nothing too odd for such launches/power. MW etc will do a stronger yoke for sure, or Strange, or G-Force.

But that prop is insane !!!

I dont know what type of steel etc mine is, but its just a regular steel 3" diam ( sourced from the US ). Mine is not chromoly though.
I did have the rear section sourced from Hauser for a while, which I assume was made locally. They say they have run 3" steel with no problems on 8 second cars.