Excessively negative camber. Assuming that the ball joints aren't fuxor3d, you can adjust the camber using the cams at the upper ball joint.
All tires have a wear indicator. Look on the tire for that indicator between the tread. Once the tire reaches that point they are worn out and need replacing. Another test is to insert a penny with Lincoln's head down. If you can see the top of Lincoln's head they are worn out.
P235/50r17
225/60-16
tires out of balance?
They are only flat at the bottom.
There is a jack on the bottom of the cars that raise them up when the tires are changed.
In the trunk next to the spare tires.
20"
You could stick a lincoln penny in the tread. Having lincoln's head facing away from you, if it doesnt cover any of the top of the head it's time for new tires
You must remove the brake rotor or hub and punch out the broken bolt inwards, then press a new bolt in from the same direction.
balance your tires
get a penny, and place it upside down (with Lincoln's head facing down) in one of the grooves. if you can see the top of the head its time to get new tires.