is this a viable response....I quote "most ring and pinions are just repackaged and sold to the consumer under a different name brand. Yukon doesn't make their own for instance. The last one i bought from them was made in south korea.
What you want to look for is if they are made out of 8620 steel, that's what's really important. OEM gears are made of 4027 steel, and so are a lot of the cheap ring and pinion sets. "