The new (Chinese) axles are ridiculously cheap! They basically put axle rebuilders out of business… It has been my experience that all of those axles are the same, regardless of where you get them (Ebay, AutoZone, or NAPA).
In my DSM racing world, we put out 2-4 times more power (than OEM) and yet these cheap axles seem to do just fine. After several years of using them, I must say that they appear to be a suitable replacement for OEM. In fact, they seem to be MORE reliable than the old, rebuild axles from Autozone.
Whenever possible, I prefer OEM. But OEM is hundreds of $$$, so they are not very practical. An alternative is to replace the boots on factory axles (assuming that the CV joints aren’t yet ruined). The problem is that replacement NAPA boots are $46 per axle and there is still a chance that joint are bad, where as you can buy a PAIR of new Chinese axles for $100 on Ebay.
I think that will buy the new axles, but save the old OEM units for a possible feature rebuild.