I recently changed tires on 6mt sedan to Kuhmo asx. For some reason after that the front drivers side suspension squeaks loudly whenever it hit bumps, potholes. Very annoying. Sounds like my dads old '78 suburban. Could this be caused by the new tires? Size 235/50 17.

Do a search for the term "compression rod". This may or may not be your specific problem, but what you are describing fits what many others have experienced.