8.75 rear end / axles bearings modification for disc brakes

I am still using stock Mopar axles in my 8 3/4 with slicks and enough motor (440/727) to have gone low elevens. I think have about 500 crank, 400 wheel hp.
I DO think I have been lucky so far, and when I put in my 522, I think a dana will be required.
I won't put a bunch of money into ANY 8 3/4, I would sell it before I break it, and invest on a nine/dana 60.
Regarding the pic of the twisted splines: I did that too, to a pair of 8 3/4 axles in a V8 Vega. They were stock Mopar that had been shortened and resplined, and then insufficiently hardened after.
I'm pretty sure that the Doctors axles would be an improvement over my stock Mopar axles.