My tire is wobbly

If it wobbles with your hands at 9 and 3, its a tie rod end.
If it wobbles with your hands at 12 and 6, its a wheel bearing.

Lift that tire off the ground. Grab it on the top and bottom. If it moves, have some on watch the lower ball joint. If the ball joint moves, replace it. If it doesn't replace the wheel bearing. If the tire doesn't move top and bottom. Grab the sides and move back and forth. If you feel slop in it, replace the outer tierod. Do this soon, because a lot of vibration could be close to failing/wreck.

Here's a long answer. It could be 100 things. But if your wobble is showing up at low speeds, look at the tread on the tires. Does it snake back and forth? If so you have a belt separation in the tire. If it's not a tire, you may have a suspension part that's bad. Or, more than one. Control arms, ball joints, tie rods, (inner and outer), bushings, and wheel bearings, and any one of them could be waiting to send you into the ditch, or worse. Many garages will give you a free check of your major components. Try them. If you can't or won't, jack up your truck so one wheel is in the air, grab the front tire with one hand at 9 o'clock and the other at 3 o'clock. Wiggle the tire. A very little play, is probably ok, but if you have more than 1 inch of movement, you probably have a bad wheel bearing or a ball joint or control arm. Now grab the tire from top and bottom. Try to move the tire up or down. You should have NO play, at all. Any movement is bad, probably a ball joint, but it still could be a bearing. When you're driving, if your steering wheel is wobbling side to side, it's a front wheel problem. If you just feel the wobble in your seat, it's a rear wheel problem. Don't let the problem keep getting worse. If you put used tires on, it's probably a tire. That, you can fix. Anything else I've mentioned, you can't fix without some very expensive tools, and an alignment machine. Good luck.

Subaru ,OK wheel bearing ,yikes I think that is a press in bearing,not an assembly like most,not a "driveway" project.
You could pull the whole spindle(,some spray paint on the strut bolt area aids in getting the alignment right later.) then take the bearing and spindle to a shop to get pressed in.

Jack up the front wheels and rotate them by hand. Look for any runout that may be cause by a bent wheel. Also feel the tread as you rotate the tire. It should be smooth and concentric. If there are any bulges in the tread the tire is seperated. Grab the wheel at the top and bottom and push/pull. You should feel no play. If you do you woman have a bad wheel bearing. In order to check ball joints and tie rods you will need to have the tire off the ground and the jack under the subframe or pinch weld. This will not work if the jack is under the control arm. Grab the tire at the 9 and 3 o'clock positions and push pull. If you feel any play you either hav E worn ball joints or worn tie rod ends. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Lower control arms. There are two bushings that are at the frame, if these are gone then it is possible for it to wobble. I would also check the wheel bearing and ball joint. To check these lift the tire off the ground. For the bearing grab the tire top and bottom push it in and out, if there is any movement the bearing is worn. If these are worn enough they to will cause a wobble. For the lower ball joint have someone put a 2 X 4 under the tire and lift as you watch the ball joint. if it moves up and down in the socket it is bad. All these together can cause a significant wobble. The lower control arm mounts to the frame and the lower ball joint is mounted to the lower control arm at the tire and the bearing is the part that holds the tire on.

You need to check the hub bearing and the lower ball joint on the vehicle and make sure they are good. If you can jack the vehicle up and can grab the top and bottom of the wheel and wobble it back and forth then the bearing is possibly bad. If you can grab the front and rear of the tire and move it back and forth it could be the tierod end you can have someone watch the parts while you move the tire.

It could be an indication of a bad wheel bearing assembly. Did you check the lug nuts to be sure they are tight? It could also be the tie rod assembly. I would take off the wheel and try to move the just the hub assembly. Do you hear any screeching/squealing noises? Any popping while you are driving? Are your tires wearing? All these are classic signs of a bad wheel bearing. Any decent tire/auto shop can put your car on a lift and check the wheel bearings.

Possible wheel bearing failure, ball joint failure or tie rod end failure. Does the wobble seem to be when tire is moved toward center of vehicle on top and bottom or front and back??

jack one tire up at a time, from the control arm, so the tire is not dangling ro the spring does not extend, then grab the tire with one hand on top and one on the bottom, and wiggle it, if it moves you have a bad ball joint, then grab it with one hand on each side and move it back and forth if it moves you have a bad tie rod end.