Ongoing abnormal treadwear issue?

[smashweights]

I noted this abnormal wear pattern on my stock Bridgestone Dueler H/L tires, posted about it here and the consensus was alignment issue. Wear pattern seemed to fit with a toe problem. So I had the OEM Duelers replaced at 34k miles with Conti TerrainContact H/T XL tires at that time in March 2022. I had the shop do an alignment then, not much was off, very slight right toe off, and the front right/passenger tire seemed to wear this spot fastest. Had them redo the alignment a year later at 44k miles (had a 1 year alignment plan) and toe went slightly off the opposite end of spec. I'm now sitting at almost 60k miles and the outer edge/toe wear seems to be developed on the new tires as well. I had to take the truck in to the dealership anyway for the ABS/ESC recall and asked them about the wear. They "didn't notice any abnormal wear" but rec'd doing an alignment again. Seems the caster was way out of spec and comparing the previous non-dealership alignments the specs they used were slightly off and a little high even post-alignment.

Interestingly, the initial alignment lists the truck as "DT... Lifted Rebel/Off-road" which it's not a lifted rebel/ORG and the second lists it as "DT... steel suspension" instead of air ride. The dealership here put it as a DS, so has no one ever used the correct truck for an alignment???

So here I am still noticing this outer edge wear with new tires and 2 alignments after about 26k miles. The horrible wear is the OEM tires for comparison but if you look at the treads on the new tires, you'll see the siping is nearly or completely toast on the outer edge in a similar area to the OEM tires. I have had the tires rotated and re-balanced with every oil change and am religious about keeping my tire pressures around 36-38psi cold. These are 70k warranty tires and i'm not even halfway through that rating and i'm concerned the outer edge is going to significantly impair the lifespan yet again. Any other suggestions?

 

[neverlift]

I have some questions.
What’s your tire pressure?
How often are you rotating your tires?
How do you rotate them? Front to back, front to back with crossing… ect?
Are you positive there is nothing wore out or bent? (Bad wheel bearing, bad tie rod end, loose nut on a lower control arm, egg shape hole, bent upper control arm)
Any added weight on one side of the truck? (Ladder rack on that side ect)

It’s odd to me that two different places had to make changes to alignments… and you are still getting uneven tire wear. That almost tells me there is something worn out on the suspension. And depending on how they park it on the rack it will be slightly off.

Find a nice long straight parking lot when it’s dry outside. Take some sidewalk chalk and rub it on the tire. Do all four tires from the inside of the tread to the outside about 8 inches wide. Drive it in a straight line as far as you can and do not turn. Let me know what the chalk pattern looks like at all four corners.

 

[jimk hunt]

I have been battling outside edge wear since new. Brand doesn't make a difference, it's the truck. As far as 'spec alignment' goes, they are very broad these days. So a truck can be in spec but the tires may still wear unevenly. I asked my shop to align closer to the inside edge of the spec. Seems to have helped. Rotation method will not help the issue. You could have the tires dismounted and remounted to change the direction of rotation. This would get you more miles out of your current set.

 

[smashweights]

I have some questions.
What’s your tire pressure?
How often are you rotating your tires?
How do you rotate them? Front to back, front to back with crossing… ect?
Are you positive there is nothing wore out or bent? (Bad wheel bearing, bad tie rod end, loose nut on a lower control arm, egg shape hole, bent upper control arm)
Any added weight on one side of the truck? (Ladder rack on that side ect)

It’s odd to me that two different places had to make changes to alignments… and you are still getting uneven tire wear. That almost tells me there is something worn out on the suspension. And depending on how they park it on the rack it will be slightly off.

Find a nice long straight parking lot when it’s dry outside. Take some sidewalk chalk and rub it on the tire. Do all four tires from the inside of the tread to the outside about 8 inches wide. Drive it in a straight line as far as you can and do not turn. Let me know what the chalk pattern looks like at all four corners.

First two questions are answered in the OP. Rotate every 8k with oil changes. No idea what rotation pattern the shops use. I have no idea of anything is worn out but given how severe the asymmetric wear was in the original tires it would have to have been something that happened in the first 10k miles before I owned it. All three shops have made alignment changes in 30k miles, is it normal for the alignment to be off that frequently?

I have been battling outside edge wear since new. Brand doesn't make a difference, it's the truck. As far as 'spec alignment' goes, they are very broad these days. So a truck can be in spec but the tires may still wear unevenly. I asked my shop to align closer to the inside edge of the spec. Seems to have helped. Rotation method will not help the issue. You could have the tires dismounted and remounted to change the direction of rotation. This would get you more miles out of your current set.

I asked about flipping the tires on the wheels to move the outer edge to the inner edge too extend the life as the inner edge doesn't wear.

 

[neverlift]

I have 63k miles on my truck. I am on my third set of tires and had it aligned after the first set at 13k miles. Haven’t touched the alignment since.

What I am getting at is, yes its an ifs truck, yes they will wear little worse than most but not enough to having to flip tires on wheels.
It has to be alignment problem. If you are around my neck of the woods I have 2 places that I use. They are the only shops allowed to touch my truck or wife’s car.