2004 Oldsmobile Bravada Q&A

2004 Oldsmobile Bravada Question: car shaking up and down

just started today, car seems to have sunk about 3to four inches, tires are fine -
Answer 1
While truning steering wheel sharp left or right? -
Comment 1
no,just going down the road -
Comment 2
Have tires checked, may have an 'out of round' problem. -
Answer 2
are you in any snow -
Comment 1
was last of January,but this started after that event -