Weird 4Runner tire wear

[Preacherman]

In my experience that is caused from the shocks.

 

[Rustytigwire]

If it's four wheel drive, put manual lock hubs on it.

 

[Shakel65]

Shocks/struts and/or not rotating enough. Aggressive tires need to be rotated more frequently than a highway tire.

 

[jimbo74]

Shocks/struts bad

 

[HKP7M13]

My experience with aggressive treaded tires the tread configuration can cause a wear pattern like this even if all suspension parts are in good shape. If you have worn suspension components and low air pressure then the wear pattern will be more pronounced. Some tread designs just do not wear well.

 

[swampratt]

I know some 4 wheel drive shocks or struts are charged with a ridiculous amount of air/gas pressure.
I have checked some off a friends Toyota and 250 psi is what they were charged to.

Super stiff ride and that could go wither way on tire wear.

I also know a heavier tire /rim package may need a heavier duty shock to control the bounce or say abrupt up and down movement from uneven roads.

Sometimes a replacement shock/strut will cure the cupping and other times you may need to add another shock to the mix and have 2 shocks at each corner of the vehicle.

I have built mounts to add extra shocks and cure the uneven tire wear when a single shock would not do the trick.

Good luck to all that have the cupping issue.

 

[SlugSlinger]

I know some 4 wheel drive shocks or struts are charged with a ridiculous amount of air/gas pressure.
I have checked some off a friends Toyota and 250 psi is what they were charged to.

Super stiff ride and that could go wither way on tire wear.

I also know a heavier tire /rim package may need a heavier duty shock to control the bounce or say abrupt up and down movement from uneven roads.

Sometimes a replacement shock/strut will cure the cupping and other times you may need to add another shock to the mix and have 2 shocks at each corner of the vehicle.

I have built mounts to add extra shocks and cure the uneven tire wear when a single shock would not do the trick.

Good luck to all that have the cupping issue.

Thanks,
I’m starting to notice more Toyotas with the same type of wear on both Tacomas and 4Runners.

 

[fishincoop]

Thanks. Makes sense on the wife’s with 145k miles. Those pictures are from a later year, maybe a 2024. Is it just not enough shock/strut for the slightly larger than factory tire size?

If you have 145k on factory Toyota shocks, they’re gone. Gradual decline, not noticeable to driver, till you have a problem. I finally changed out my Tundra shocks to a set of Bilsteins and WOW what a difference. Change em and enjoy!!

 

[SlugSlinger]

Here’s another.