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Cupping on Front Tires

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Damg****##!!! Transmission.

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I'm having this issue recently after getting new tires and the web indicates it might be an alignment or worn parts issue. Our truck has just over 20k miles and does not ride rough, noisy or drift when on level ground. Tires are inflated 75-80psi. In the pix, it is more severe than is showing on my tires but is like each step has its own ledge very slightly. Only on the outside and more pronounced on the drivers side.
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Take it to a QUALITY alignment shop and have them set the toe to 1/64". Stock setting is 1/4" and causes outer edge "Stepping".

Proper alignment with 30k on these tires running 80psi ALL the time.
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+1 Cant say enough about selecting a good tire/alignment shop. I had poor tire wear on the original Firestone Tires and a vibration I was told was normal (from a small tire shop after paying them too much money for new tires and alignment).

Went to Discount Tire and these guys were awesome. Aligned and Balanced for $40 and free trie rotation for the life of the tires. Customer service is Excellent. (Tucson/Scottsdale)
 
Okay. Set toe to 1/64". Thanks Cummins12V98. Knew you would know. I had Discount Tire replace the original Nexen tires that were separating at 20k miles and had asked them about the cupping. They told me to take it to a "quality" alignment shop that did heavy trucks. None of the DT in the Conroe area do alignments. I'll get this done pronto. Here's mine.
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Be sure to move the fronts side to side with the rotation staying the same!!! Leave rear wheels in same place. Inside of the tires will now be on the outside. Run 80 ALL the time fronts. Rears 35psi unloaded and air rears to load when loaded.
 
Be sure to move the fronts side to side with the rotation staying the same!!! Leave rear wheels in same place. Inside of the tires will now be on the outside. Run 80 ALL the time fronts. Rears 35psi unloaded and air rears to load when loaded.
Rears need rotating, too, from side to side.

The fronts DO NOT need to be dismounted, remounted, and balanced (swapped) as there’s zero need for “rotation staying the same.”
 
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Rears need rotating, too, from side to side.

The fronts DO NOT need to be dismounted, remounted, and balanced (swapped) as there’s zero need in for “rotation staying the same.”


In your opinion, YOU freeway drive a lot with little turning so you don't get any edge wear at all. My rears all wear evenly never have a need to move them. I do keep air pressures relevant to load.

Simply look at trucks in parking lots, they mostly have front outer tire wear.

I am saying what works for "ME". Many have followed my advice on the archaic 1/64" toe and air pressure recommendations and front tire only rotations.

YOU running heavy most of your miles the passenger side rear tires may wear more???
 
Drive torque on rear tires will cause some uneven wear. That uneven wear goes away when rotated.....until the process starts again.

I say the exact same about the front side to side with rotation staying the same.

I must not be very "TORQUIE" ???

Hey aren't you essential??? If so shouldn't you be out there saving America???
 
I say the exact same about the front side to side with rotation staying the same.
But changing the direction on the drive tires actually reduces and ultimately eliminates the uneven wear....
Hey aren't you essential??? If so shouldn't you be out there saving America???
I’m still trying to understand and digest the bold statement above......unless it’s 100% snarky in nature.
As a matter of fact.....I’ve ran six days per week and between 2,800 miles per week and 3,300 miles per week for four of the last six weeks.
 
Be sure to move the fronts side to side with the rotation staying the same!!! Leave rear wheels in same place. Inside of the tires will now be on the outside. Run 80 ALL the time fronts. Rears 35psi unloaded and air rears to load when loaded.


IMHO For most of us , I do not think pulling good leak free tires off the rims is gonna happen. It cant be beneficial to the rims ,tires and sealing areas. The alignment change is something I will look into.
 
cupping is zero to do with alignment. First is tire quality/construction, next is balancing (inc good pressure) , and last is front-end integrity (or the lack of). The very outside cause is a bad load distribution across the four tires, but that's an outlier. Bad alignment can cause a lot of things, but cupping isn't one of them unless its so far off you can't keep the truck pointed straight down the road without two hands. I was in this business during a previous life
 
Too much toe in will cause the cupping / feathering you are showing. I’m running 1/32” toe in on my 2013. Since I’ve set things up I show almost equal feathering on both inside and outside of the front tires. Steering wheels will wear the outside edges. One of the reasons why you want to rotate fronts to back every 10k miles.
 
cupping is zero to do with alignment. First is tire quality/construction, next is balancing (inc good pressure) , and last is front-end integrity (or the lack of). The very outside cause is a bad load distribution across the four tires, but that's an outlier. Bad alignment can cause a lot of things, but cupping isn't one of them unless its so far off you can't keep the truck pointed straight down the road without two hands. I was in this business during a previous life


WELL, you seem to have all the answers. I said "STEPPING".
 
IMHO For most of us , I do not think pulling good leak free tires off the rims is gonna happen. It cant be beneficial to the rims ,tires and sealing areas. The alignment change is something I will look into.


Do what YOU want! I have been doing this since 2012 with great front tire wear. Many have followed my advice. You are free to do as you want. Popping a tire and re sealing is NOT an issue with quality tires.
 
Go to 1/64 or less and the wear will be perfectly even if you are not a racer.


Nice you are understanding all this! You can lead a.........

30k with two side to side front rotations keeping rotation the same. YES even breaking the wheels from the rims!

WOW and not even touching the rears!

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*Pro forum user tip*

Use the multi-quote feature built in to the software in the lower right hand corner of each post labeled "+ Quote." This allows you to quote multiple posts from multiple users without having multiple responses yourself. This prevents users from having to click on the same thread over and over again within minutes due to one user responding to multiple posts. ;)
 
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