Four new tires cured the problem! Conclusion: never mix tire brands! Solution: just throw $$$ at the problem!I had to replace the rear tires on my 2014 Tucson, AWD, base model, 2 L engine. My original tires were 225 60 17. The tire company replaced them with 225 65 17 and the transaxle went snakey! Vibration, noise and clunking. To confirm this, I put my 4 winter tires back on and the problem went away. According to the website mentioned in a post above to find wheel dimension differences, etc, the diameter of the new tires was 20 mm larger. I think it is safe to say that all 4 should be changed at the same time!