My brother used to drag race a 12sec Volkswagen Rabbit. He had problems breaking the stub shaft on the front axles. He finally sent a set out for cryo, sorry don't know where, no more problems. That set of axles were still in the car when he sold it.
RADesigns.
Installed in my zuk. Haven't actually used it yet but it was the only way to fit an auto shifter. RADesigns makes those too, but I made my own.