If you get the TRAKMOTIVE NI8134 / NI8123 from Rock Auto, or any of the Chinese axles that are available nowadays, before you install them I would recommend taking the boots off and filling them with some good grease. They don't have enough grease in them from the factory. I think they just skimp the grease to save money. $50 for an axle is crazy low.
Yes my p10 is probably too low and the axle is binding on high-speed cornering. I refuse to raise my car.
I used https://www.amsoil.com/p/dominator-synthetic-racing-grease-grg/
I bought a few tubes, it almost cost more than the axle did.
I did a little over 8,000 miles last year on new axles with grease in them. I'm just going to keep going, as I have a set of spares in the trunk ready to go should I have problems.
Back when I ran them as is out of the box, I broke a many CVs. One of them I installed while at the track (because I broke one) and then only got 4 laps before I snapped the CV cage on the replacement. Otherwise I was averaging 200-300 miles up to like 1400-1500 miles before something went wrong; sometimes inners, sometimes outers.