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Old 10-16-2015, 09:58 AM   #21
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I agree looks overloaded , or was overloaded in the past and bent the axle.
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Old 10-16-2015, 10:13 AM   #22
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Lots of possibilities as to cause.

I would add looking at the wheel well for black streaks, signs of tire rubbing. Some of the Parkliners had tire rubbing issues due to lack of clearance in the wheel well.
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Old 10-16-2015, 03:39 PM   #23
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You might already have all the opinions you want but I will share anyway. If the axle / spindles is bent (from going too rough over a pot hole, etc.?) you will experience inside wear. Bottom line - seek professional advice.
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Old 10-22-2015, 11:26 PM   #24
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The new radials are running even so far.
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Old 06-22-2022, 02:02 PM   #25
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After six plus years I changed the tires last month. They weren't worn and looked good but were seven years old so I thought it might be best to replace them. This time the old ones looked normal.
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Old 06-22-2022, 02:37 PM   #26
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Old 06-22-2022, 03:44 PM   #27
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Originally Posted by starsea View Post
After six plus years I changed the tires last month. They weren't worn and looked good but were seven years old so I thought it might be best to replace them. This time the old ones looked normal.
So, I guess it was defective tires?
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Old 06-22-2022, 04:00 PM   #28
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I guess so. Better than the axel.
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Old 06-22-2022, 05:01 PM   #29
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Wow! How often does a poster from 7 years ago come back for a long-term update?!! Glad to hear all is well.
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Old 06-23-2022, 08:34 AM   #30
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If there is one-sided tire wear on the shoulder, it is a sign of too much camber. Camber is the inner or outer angle of the tire, as seen from the front or rear. Camber is common in sporty and modified cars with a lower clearance. Excess inward angling of the tires is negative camber, while the outward angling is positive camber. Having too much load and a flawed suspension system can cause cambering.
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Old 06-23-2022, 04:05 PM   #31
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Originally Posted by parmm View Post
If there is one-sided tire wear on the shoulder, it is a sign of too much camber. Camber is the inner or outer angle of the tire, as seen from the front or rear. Camber is common in sporty and modified cars with a lower clearance. Excess inward angling of the tires is negative camber, while the outward angling is positive camber. Having too much load and a flawed suspension system can cause cambering.

Worth considering is the trailer is towed level. Tongue too high or too low can change the factory camber angle, though I think it would have to be extreme to have that dramatic an effect.


If those are the tires that came on the used trailer, maybe the previous owner put some 'dogs' on there to save recently purchased new tires.
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Old 06-23-2022, 04:05 PM   #32
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Looks like a cheap Chinese bias tire failure to me.
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Old 06-24-2022, 08:41 AM   #33
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Negative Camber would cause that wear, assuming the worn side was inboard.
Unfortunately, negative Camber is normally evidence of a worn axle.
Since, the difference from inboard wear to outboard wear is progressive over the life of the axle, it is common for a partially worn axle to wear the tire at only a couple of 32nds difference in the life of the tire in the early stages.
It my not be apparent or even worrisome if the tires are changed while the inboard side still has 3/32nds and the outboard side may still have maybe 5 or 6/32nds. As long as the tire is "timed out" by then no big deal.
When the axle wear is such that the inboard side wears much faster then a new axle may be in the offing.
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Old 06-24-2022, 09:46 AM   #34
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“ While viewing from the side of a vehicle, the caster is the angle between the steering axis and a vertical axis of the wheel. While viewing from the front of a vehicle, the camber is the angle made by an axis of the wheel with an axis perpendicular to the road.”

DH used to do his own adjustments to the *caster* of the front wheels on his log truck, which resulted in better steering and tire wear. But he did come from foreign auto sales and sports car racing…
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Old 06-24-2022, 11:44 AM   #35
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Originally Posted by EllPea in CA View Post
“ While viewing from the side of a vehicle, the caster is the angle between the steering axis and a vertical axis of the wheel. While viewing from the front of a vehicle, the camber is the angle made by an axis of the wheel with an axis perpendicular to the road.”

DH used to do his own adjustments to the *caster* of the front wheels on his log truck, which resulted in better steering and tire wear. But he did come from foreign auto sales and sports car racing…
Thanks for the post, this may clarify further...

The left pictures are from the front of the car, the middle pictures are from above the car, the right picture is from the side.
Camber and Toe are relevant to a normal trailer axle, Caster is not, unless you misleadingly count leading or trailing arms as caster, (they don't normally steer)




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Old 06-24-2022, 01:16 PM   #36
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Originally Posted by floyd View Post
Thanks for the post, this may clarify further...

The left pictures are from the front of the car, the middle pictures are from above the car, the right picture is from the side.
Camber and Toe are relevant to a normal trailer axle, Caster is not, unless you misleadingly count leading or trailing arms as caster, (they don't normally steer)
Thanks Floyd,
These images are great! The point being that the angle the tire takes down the road affects wear. But I wasn’t the tire expert in the family, just the acolyte.
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Old 06-24-2022, 04:49 PM   #37
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There would be a clearly visible camber issue to cause the inboard side wall to be stressed like that.
Wearing on one side is one thing. The center of the tire and the wear on the outer indicated that the tire was run with low pressure.
Remember that these are bias ply tires.
By the way a good alignment shop can adjust the camber by slightly bending the axle carry through member. The can also adjust the toe the same way.
Looking at the apparent difference in the sidewalls makes me thing that in addition to whatever the camber or toe issues might be I think low inflation and a failed sidewall is indicated. Looking at the inside might be instructive.
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Old 06-24-2022, 05:26 PM   #38
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There would be a clearly visible camber issue to cause the inboard side wall to be stressed like that.
Wearing on one side is one thing. The center of the tire and the wear on the outer indicated that the tire was run with low pressure.
Remember that these are bias ply tires.
By the way a good alignment shop can adjust the camber by slightly bending the axle carry through member. The can also adjust the toe the same way.
Looking at the apparent difference in the sidewalls makes me thing that in addition to whatever the camber or toe issues might be I think low inflation and a failed sidewall is indicated. Looking at the inside might be instructive.
Not to disagree but the way most fiberglass trailers are built , it takes more than a casual glance to see the wear or the excessive camber.
Bending the axle into compliance on a worn axle would not be a good solution. It might work in the event of a curb strike or similar severe event on a fairly new axle.
For sure low tire inflation is a common problem, even often done intentionally.
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Old 06-24-2022, 05:51 PM   #39
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Two different things here on bending axles for alignment.
First it is not to correct for a worn out axle, but alignment by bending the axles is fairly common, especially in tandem axle systems. But these days there are fewer specialists in this type of thing.
Most or almost all trailer axles are setup to be straight in line with the direction of travel and most bent axles are a problem with overloading or some other damage.
If I remember correct back in ancient times when when we hauled race cars with tire racks on the front (before the big haulers of today) many trailers has a slight toe in on the front tires, but I can remember incorrectly).
The torsion axles shafts in the torsion area can bend and move around as they age, but then they are already past the best used by date.
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Old 06-24-2022, 07:17 PM   #40
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Originally Posted by redbarron55 View Post
Two different things here on bending axles for alignment.
First it is not to correct for a worn out axle, but alignment by bending the axles is fairly common, especially in tandem axle systems. But these days there are fewer specialists in this type of thing.
Most or almost all trailer axles are setup to be straight in line with the direction of travel and most bent axles are a problem with overloading or some other damage.
If I remember correct back in ancient times when when we hauled race cars with tire racks on the front (before the big haulers of today) many trailers has a slight toe in on the front tires, but I can remember incorrectly).
The torsion axles shafts in the torsion area can bend and move around as they age, but then they are already past the best used by date.
Excessive negative camber or toe-out due to a worn axle should not be corrected by bending the axle tube.
Most excessive Camber and toe-out on Fiberglass trailers is due to wear.


Cargo trailers are far more commonly subjected to overloading. and thus may be bent early in their useful life, thus justifying some attempt at alignment.
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