Ouch,
Unfortunately you have bigger problem. If you feel the vibration in the steering wheel, it is likely in the front. If you feel the vibration in your seat, the rear.
-Raise vehicle and use jack stands. --IMPORTANT
For front and back!-
-Inspect upper and lower ball joints by prying from the bottom of the tire up with something sturdy to see if your wheel has play where the balljoints meet. If the entire knuckle assembly moves tight, your ball joints are ok. If there is any play when prying up, replace your ball joints.
-Inspect your tie rod ends, are they stiff? Does the boot look ok?
-Inspect your brakes for pad life
-Inspect your rotors for grooves or any cracks
-Inspect your sway bar linkage for play
If all is tight - We will now check wheel bearings
Grab tire firmly and move from side to side, use your senses to feel for play.
Another way is to drive down the road and get the humming going
-load the right side by turning your wheel to the left (safely swerving)
if the noise goes away, your problem is on the left side of the car
-load the left side by turning your wheel to the right (safely swerving)
if the noise goes away, your problem is on the right
Vibration diagnostics 101
-initiate the vibration
-shift into neutral
-if vibration goes away <- drivetrain issue (your weights on the driveshaft)
-if vibration remains <- other issue
Good luck,
post results!
