IMO, I feel like all these various companies Are basically doing a rebuild and testing at a premium Price. That being said, I am sure they are paying better attention to the internal components then say your average parts store rebuilds. If you do enough digging you will find early failures with both Blue and Red top units. I am sure PSC has some too.
If the OEM Box fails on its own, What's being done to improve them from these other companies?
WIth this new 6 Bolt top box, The Sector shaft and its gears are Physically larger. According to the info from PSC The pitman arm and sector shaft on the OEM box flex and cause the lower seal to fail .
That being said, The PSC box has the same QC Paint markings on it. The only Difference is that it has a Serial tag from PSC with there serial number on it.