Doesn’t matter where it’s made. Spicer should be in charge of quality control. Most Warn’s are made in China, but Warn supervises manufacturing just like most companies are in charge of that.
I also ordered the same shafts rear right and left. The packaging they arrive in is terrible. Both shafts were sticking out the end of the box And looked as if they’ve been drug across every concrete they’ve come in contact with in the delivery process to my house. One shaft arrived with no studs Pressed in and all and the other one 2 of the studs were like yours about half pressed in. After a lengthy return process, the new sets arrived in even worse condition with same shipping issues and stud problems and the new parts weren’t pressed on all the way and Literally wobbled when you would turn the shaft. Dana has lost my business. A bit of QC and a bit of care in packing could have probably solved everything.