Ehh, as long as the QC is good, it'll be fiiine. Chinese manufacturers are pretty damn good when they want to be. I wouldn't buy the cheapest Chinese parts available but I would run those Spicer parts without a second thought.
Coming from the Samurai world, Chinese parts are really the better option on those rigs. With Japanese made Suzuki Genuine Parts becoming increasingly rare, its mostly Indian made Maruti garbage that is available. I've bought bearing kits and thrown everything but a couple wiper seals for the knuckles away because the bearings were out of spec. I swear they had to be measuring the OD of the bearing with a tape measure. 3 bearings, 1 PN, all different sizes. .012" difference between the largest and smallest OD. The seals had an incredible amount of flashing on them, and the seal lip had major defects from a damaged mold. The hardware was about as strong as a hard cheese. Hell, they couldn't even get the door handles right, The recycled aluminum they were cast from had zinc contamination. I could break chunks off with my bare hands. The Chinese made parts are what we have to keep them going, and they're known to work well.