Tire Wear
Elder User
Joined: Feb 2006
Posts: 765
Likes: 1
From: Eastern Ohio
How long since the last rotation?
Lets not blame any parts yet. If it has 2-3k since the last rotation we can blame the truck, 6-7k we can blame the driver.
Unless they look like they have been spray painted the black shocks are probably factory. I replace shocks with every set of tires.
Lets not blame any parts yet. If it has 2-3k since the last rotation we can blame the truck, 6-7k we can blame the driver.
Unless they look like they have been spray painted the black shocks are probably factory. I replace shocks with every set of tires.
Thread Starter
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Elder User
Joined: Jul 2012
Posts: 947
Likes: 0
From: Glen Rose, Texas
How long since the last rotation?
Lets not blame any parts yet. If it has 2-3k since the last rotation we can blame the truck, 6-7k we can blame the driver.
Unless they look like they have been spray painted the black shocks are probably factory. I replace shocks with every set of tires.
Lets not blame any parts yet. If it has 2-3k since the last rotation we can blame the truck, 6-7k we can blame the driver.
Unless they look like they have been spray painted the black shocks are probably factory. I replace shocks with every set of tires.
Cargo Master
Joined: Oct 2011
Posts: 2,889
Likes: 779
From: SoCal/Wyoming
Try not to worry too much as all off-road tires will cup after a few thousand miles. You can run a duel front shock to help hold them down on the road but they will still cup eventually even if all other drive components are correct. Most people will rotate them every 5k but some tires (like mine) do better with a 3k rotation to keep them nice and flat. I ran 37” AT BFGs for years but the side walls did not seem to hold up to the heat in my area combined with the weight of the truck but the tread pattern stayed true to 5k. Now I run PC 37s but they need a shorter rotation interval to keep them flat. DCs are a soft tire and if you are running mud terrains, they will definitely need a 3k rotation.<O
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Thread Starter
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Elder User
Joined: Jul 2012
Posts: 947
Likes: 0
From: Glen Rose, Texas
Try not to worry too much as all off-road tires will cup after a few thousand miles. You can run a duel front shock to help hold them down on the road but they will still cup eventually even if all other drive components are correct. Most people will rotate them every 5k but some tires (like mine) do better with a 3k rotation to keep them nice and flat. I ran 37” AT BFGs for years but the side walls did not seem to hold up to the heat in my area combined with the weight of the truck but the tread pattern stayed true to 5k. Now I run PC 37s but they need a shorter rotation interval to keep them flat. DCs are a soft tire and if you are running mud terrains, they will definitely need a 3k rotation.<O</O
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Cargo Master
Joined: May 2010
Posts: 3,047
Likes: 10
From: Snohomish, WA
It is most likely the shocks causing the wear. Mine did the same thing and the tires started howling horrible! Rotations every 5k and keep an eye on the shocks. My guess is if you pull them, they will not have any force left in them.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
I live in 4X4 country and I have yet to see an old set of knobbies with good tread wear. New ***** may be gnarly-looking, but old is just gnarled. Rotation just skuffs the high points off to keep them straighter.
Thread Starter
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Elder User
Joined: Jul 2012
Posts: 947
Likes: 0
From: Glen Rose, Texas
Ok let me ask this. If it is the shocks, I have a spring pack leveling kit. That keeps the shock points at the same locations right. So I dont need any lift shocks, stock length shocks are what I need right?
Cargo Master
Joined: Oct 2011
Posts: 2,889
Likes: 779
From: SoCal/Wyoming
The shocks are not going to make the cupping go away from off-road tires. I run duel shocks up front and while it may help a little, you are going to cup the tires just driving on them as they don’t particularly like hard pavement. You can replace the shocks if they are bad but it won’t fix the cupping issue. One down side to large off-road tires is that they must be rotated often to keep them wearing even. Stiffer shocks or multiple shock set-ups help hold the tire to the road more but turning on a hard surface, taking off ramps and on ramps, or driving on a rough concrete road cause them to cup as the large tread pattern will flex more than a standard tire pattern. There are a number of spring pack kits that could alter the height of the truck. It sounds as though you may have stock shocks but I could not be sure without seeing the truck. If you intend on keeping the 35s, a larger shock (heavy duty shock) or duel set-up may give you a better ride but then again, your budget will determine the choice. The one thing I could offer is that you don’t need reservoir shocks so don’t let anyone talk you into them. Many lifted trucks have them purely for appearance but they are waste of money as you have zero chance of “overheating” you shocks with routine use. If you start racing the truck and actually getting the wheels off the ground then we can talk reservoir shocks.<O</O
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Elder User
Joined: Jul 2012
Posts: 947
Likes: 0
From: Glen Rose, Texas
The shocks are not going to make the cupping go away from off-road tires. I run duel shocks up front and while it may help a little, you are going to cup the tires just driving on them as they don’t particularly like hard pavement. You can replace the shocks if they are bad but it won’t fix the cupping issue. One down side to large off-road tires is that they must be rotated often to keep them wearing even. Stiffer shocks or multiple shock set-ups help hold the tire to the road more but turning on a hard surface, taking off ramps and on ramps, or driving on a rough concrete road cause them to cup as the large tread pattern will flex more than a standard tire pattern. There are a number of spring pack kits that could alter the height of the truck. It sounds as though you may have stock shocks but I could not be sure without seeing the truck. If you intend on keeping the 35s, a larger shock (heavy duty shock) or duel set-up may give you a better ride but then again, your budget will determine the choice. The one thing I could offer is that you don’t need reservoir shocks so don’t let anyone talk you into them. Many lifted trucks have them purely for appearance but they are waste of money as you have zero chance of “overheating” you shocks with routine use. If you start racing the truck and actually getting the wheels off the ground then we can talk reservoir shocks.<O</O
</O
Cargo Master
Joined: Oct 2011
Posts: 2,889
Likes: 779
From: SoCal/Wyoming
The fronts wear because of the weight transfer to the front tires while making turns and utilizing on and off ramps and such. Basically, your front tires are "skipping" when you turn on angles which causes uneven wear. You don't feel it but the ***** that are in the most contact with the road on these turns takes the wear while others are not affected. That's why you see the slight slope of some tread while others do not. These trucks are very heavy up front so if you keep a softer off-road tire, just rotate them every few thousand miles and all is good. Try a 5 k rotation and if they look bad at that time switch to a 3k rotation
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