Cupped tires
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Elder User
Joined: Jul 2005
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Cupped tires
I'm posting this here in the V10 forum because maybe the answer will be different for a gas engine vs the heavier diesel.
Last year, I found that I needed new front shocks. I discovered this because my front tires had started to cup. New shocks have been on the rig now for a while but my front drivers side tire howls pretty loudly at around 55mph. Visually, this tire appears to be the worst cupped.
Is there any means by which I can sort of "wear out" the cupped tire? Put the worst tire on the rear, run it slightly under pressure, and drive a few hundred miles with a heavy load - will this work? I'm sure some folks will likely suggest having it shaved (or "trued") but I really don't want to go that route if possible. Tires have easily 50+ percent tread remaining.
Input or constructive advice is appreciated.
Last year, I found that I needed new front shocks. I discovered this because my front tires had started to cup. New shocks have been on the rig now for a while but my front drivers side tire howls pretty loudly at around 55mph. Visually, this tire appears to be the worst cupped.
Is there any means by which I can sort of "wear out" the cupped tire? Put the worst tire on the rear, run it slightly under pressure, and drive a few hundred miles with a heavy load - will this work? I'm sure some folks will likely suggest having it shaved (or "trued") but I really don't want to go that route if possible. Tires have easily 50+ percent tread remaining.
Input or constructive advice is appreciated.
Cargo Master
Joined: Feb 2002
Posts: 2,414
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From: Tucson USA
not in reality. Once a tire develops a wear pattern it is there till the end. You could try to run on the rear but the cupping will remain, might not get worse but will still be there. If you have a good spare install and keep the bad one for the spare instead.
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Well, the alignment and all other suspension components were checked and verified as "good", as were the universal joints and wheel bearings. I'm not saying they too don't cause cupping - they most certainly do. But the shocks were the only item that were ID'd as faulty.
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I'm running Copper ST3 tires. Had another shop check everything on the truck just this morning - ball joints, bearings, U-joints, tie rods, bushings, alignment, etc. Everything was fine. They sent me out the door with "no charge". Very unexpected actually. But I'm more convinced the truck itself is solid. I may be buying new tires before I really wanted to...
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From: Home Base Nebraska
I'm running Copper ST3 tires. Had another shop check everything on the truck just this morning - ball joints, bearings, U-joints, tie rods, bushings, alignment, etc. Everything was fine. They sent me out the door with "no charge". Very unexpected actually. But I'm more convinced the truck itself is solid. I may be buying new tires before I really wanted to...
Denny
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From: California Desert
I'm running Copper ST3 tires. Had another shop check everything on the truck just this morning - ball joints, bearings, U-joints, tie rods, bushings, alignment, etc. Everything was fine. They sent me out the door with "no charge". Very unexpected actually. But I'm more convinced the truck itself is solid. I may be buying new tires before I really wanted to...
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You're right, I meant AT3. Not sure I'll ever buy another set of these again. I acknowledge there are plenty of good reviews out there. Just really disappointed at how quickly they started to cup and got much much worse.
I'm getting ready to put nearly 1000 miles on my rig over the next 3 weeks, hauling my heavy (4000lbs) truck camper around. I'm wondering (hoping?) if the heavy weight on the rear axle might help to wear down the high spots of the cupping? It's likely a lost cause, I know.
I'm getting ready to put nearly 1000 miles on my rig over the next 3 weeks, hauling my heavy (4000lbs) truck camper around. I'm wondering (hoping?) if the heavy weight on the rear axle might help to wear down the high spots of the cupping? It's likely a lost cause, I know.
Mountain Pass
Joined: Aug 2007
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What pressure are you running them at when empty? Bigger tires are prone to cupping if they are run at higher pressure than needed. With the v10 I run my 12.5/35's at 35psi. 60k miles and still have good even wear. Ride is nicer as well. Loaded, max pressure might be too much as well.
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ArcadeDoctor
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Jun 12, 2005 09:08 PM