Left rear tire caulked to one side,wasting tire on left side.

alignment or worn steering/suspension if rear tires alignment or something bent

Send issue to [email protected] an. Xpert and will reply soon

if its bouncing up and down check your shocks if it feels like its vibrating you need to balance the wheels

To test if your shocks are worn, go to each corner of your vehicle, put two hands on the car, and now pump the corner down hard a few times rapidly, trying to get it to bounce, than quickly let go!, If the car only bounces one or two or three times and stops, they are fine, If any one corner bounces more than two or three times and keeps on bouncing like 5 or 6 times, it's a worn shock. Worn shocks can make it feel like your driving a big ol' loose boat across the road, even in a small vehicle with movement both side to side and up and down, so can worn or loose body bushings, worn suspension parts, under-inflated or broken in or worn out and softened tires. If your ride height seems low it could be worn springs, Shocks are cheap and easy to change, especially the rears. Springs aren't cheap and can be a pain to change on some front ends. Good luck!

To check and see if it is a strut problem push down on the rear of the vehicle. the car should only bounce 1 to 2 times once released go from side to side if it bounces more than 2 times that shows a worn strut. You can also jack the vehicle up and check the rear tire for play. if you have play it could be a strut or a trailing arm bushing.

Yes it was actualy very common for the 08 impalas.

i would susppect a Alignment problem or even a worn out suspension part, i would start with new tires as you need them regardless and get an alignment, most of the tire wear is due to LACK of tire rotations and alignment checks. Start with that 1st , get new tires and an alignment check.

WHEEL BEARING USUALLY STARTS MAKING A ROARING TYPE NOISE WHICH USUALLY GETS LOUDER THE FASTER YOU DRIVE, SOMETIMES THEY WILL BE LOOSE , TO CHECK JACK UP THAT WHEEL AND GRAB TOP AND BOTTOM OF TIRE AND SHAKE, IF THERE IS MOVEMENT, TRY TO GET SOMEONE TO ROCK TIRE FOR YPU AND WATCH WHERE AXLE GOES INTO CENTER OF BEARING AND SEE IF AXLE IS MOVING WITH TIRE MOVEMENT AND SPINDLE REMAINS STATIONARY, THEN IT IS BAD BEARING, OR SOMETIMES THERE WILL BE NO MOVEMENT, THEN BLOCK REAR WHEELS AND RUN CAR WITH THAT WHEEL IN AIR AND SEE IF YOU HEAR NOISE, GOOD LUCK.

you have a worn out or loose steering component. easiest way to find it is to jack up the front of the truck so both tires are off the ground. grab the tire and "turn" it left to right, to simulate the actual steering. you will probably feel some kind of movement. like a loose feeling...its difficult to put into writing. but if you watch the steering parts while a buddy trys to shake the tire around a bit, then you should be able to spot what is loose or worn. keep an eye on the tierod ends, and the ball joints especially. but it could even be a bushing on the control arm. once you find whats loose, you either tighten it up, or replace the parts as needed. you may have to try shaking both tires (not at the same time), depending on what side of your truck the bad part is on. also check to see if the tire moves when you try to move it front to back. that would indicate bad wheel bearings.

It is true that driving with different size tires can damage the transfer case, depending on how long it was driven like that. But--- even if the tires are the same size it can cause this. if the tires are worn and two tires are new the circumference of the tires must not be more than 1/2 inch difference from each other, take a tape measure and put it around the tire in the center and measure the difference of each tire