What causes wear on the outside of the rear tire?
The only thing I can think of that might exacerbate outside edge wear in the rear MIGHT be tired shocks. If the body is leaning excessively in corners, it might cause the weight to load a bit more onto the outer edge of the outside rear tire. As the tires’ sidewalls flex, a solid axle does in fact lean relative to the road.
What causes a steer tire to wear the shoulders?
Steer tires tend to wear the shoulders where drive tires tend to wear the center – and if the front camber is bad, the wear won’t be even. (I think a 4 Runner has a solid rear axle, so I doubt that there is a camber problem in the rear.)
What happens if you have bad coil springs in your suspension?
However, if you have bad coil springs, then your tires will not be even on the road. Once that happens, the tire treads will wear prematurely and unevenly causing driveability issues on the road. You will also need to replace tires much quicker than normal even if tire rotation is done.
Why do coil springs keep your tires on the road?
Uneven Wear on Tires – Coil springs are supposed to keep the wheels and tires balanced on the road. This allows the tires to receive an equal amount of wear and tear as they’re moving on the road. However, if you have bad coil springs, then your tires will not be even on the road.
The only thing I can think of that might exacerbate outside edge wear in the rear MIGHT be tired shocks. If the body is leaning excessively in corners, it might cause the weight to load a bit more onto the outer edge of the outside rear tire. As the tires’ sidewalls flex, a solid axle does in fact lean relative to the road.
When do shocks and struts on tires get bad?
Tire cupping is a condition on your tires that occurs by the inability of the the shocks or struts to maintain road contact. During hard turning or hard braking conditions, your tires will “hop”. It is this hopping that caused the cupped effect on the tire treads. Cupping shows physical evidence on your tires when your shocks and struts are bad.
Steer tires tend to wear the shoulders where drive tires tend to wear the center – and if the front camber is bad, the wear won’t be even. (I think a 4 Runner has a solid rear axle, so I doubt that there is a camber problem in the rear.)
How can you tell if your suspension struts are bad?
A not very common symptom of bad struts is uneven wear on your tires. However, it can happen if the coil spring broke and the car got lowered, which caused the wheel alignment to get moved. So if you notice uneven tire wear, have your suspension struts checked and make a new wheel alignment after the strut replacement.