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Torsion axel trailer and tire wear

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Old 07-11-2018, 07:32 AM
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Default Torsion axel trailer and tire wear

i bought a new trailer in December 2015. It has 2 3500 pound tie down torsion axels. It is a the first torsion axel trAiler I have owned.

My truck keeps track of my trailer miles and I have put right at 15000 miles on it since I have had it and have colpleatly gone through 2 sets of tires. The inside of the tires wears out first.

I replace the tires when I can see the metal.

is this normal to eat tires like this? How long should a set of tires last?
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Old 07-11-2018, 07:58 AM
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Originally Posted by Wood boat builder View Post
i bought a new trailer in December 2015. It has 2 3500 pound tie down torsion axels. It is a the first torsion axel trAiler I have owned.

My truck keeps track of my trailer miles and I have put right at 15000 miles on it since I have had it and have colpleatly gone through 2 sets of tires. The inside of the tires wears out first.

I replace the tires when I can see the metal.

is this normal to eat tires like this? How long should a set of tires last?
Not normal. Serious alignment problem.
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Old 07-11-2018, 08:12 AM
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If all 4 are wearing on the inside it sounds like you are overloaded. Any chance your rig weighs more than the trailer limit?
I just weighed my boat and found that with my stuff and 1/3 tank of fuel I'm right at the 6000 pound gross trailer weight. This is not including ice chest or more fuel. I wish the dealer has sold me a more stout trailer.
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Old 07-11-2018, 08:35 AM
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Originally Posted by billinstuart View Post
Not normal. Serious alignment problem.
How do you check the alignment?

when I did my wheel bearings I jacked up the trailer and took off all 4 wheels and pulled a tape from the coupler to the ends of the spindles and got the same measurements on both sides.

i thought buying a new trailer would keep me from having to mess with this stuff. I guess I was wrong.
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Old 07-11-2018, 08:49 AM
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Old 07-11-2018, 11:23 AM
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Inside wear is a sign of under inflation.

What is the tire max PSI?

What PSI did you inflate the tires to? Did you inflate them cold? How often do you check your tire pressure?

Load range of tires? Weight of load you are trailering?

Bias or radial tires?
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Old 07-11-2018, 11:33 AM
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Originally Posted by Fish'nFool View Post
Inside wear is a sign of under inflation.

What is the tire max PSI?

What PSI did you inflate the tires to? Did you inflate them cold? How often do you check your tire pressure?

Load range of tires? Weight of load you are trailering?

Bias or radial tires?
i have been using load range d tires. The max is 55 psi. I have been filling to 45psi cold. I check before a trip.

i blew out two of the cheap bias tires that came with the trailer on a trip to the keys and replaced with cheap radials. then switched to 81 mph rated radials last year.
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Old 07-11-2018, 11:37 AM
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10 PSI too low - there is part or all of your problem.

ALWAYS, ALWAYS fill to MAX PSI, COLD, as-in not only before moving the trailer but in the early morning or dusk when the sun is not heating everything up.

What size tire? What is load range?

What is the estimated load you are trailering?

Bias or radial tires?
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Old 07-11-2018, 11:45 AM
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Best to just share tire make/model and tire size. That will answer 2 of the questions.

Not all tires w/a D load range will have the same load capacity. A smaller tire or one with fewer plys and lower psi max, will have a lower load range than say a larger tire or one with more plys w/the same load range and say 65 psi max.
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Old 07-11-2018, 12:07 PM
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The tires are contender radials 205 75 14. Not sure the exact load rating but they were rated more than the tires that came on the trailer. Will look at it when I get home.

The trailer gross weight is 5225 pounds. Cargo weight is 4250. Looking at sticker Axels are 3700 and not 3500.

Boat at Hull weight is 2200 pounds plus motor plus fuel plus top...... I really do not think I would be over 5k on the trailer.
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Old 07-11-2018, 12:31 PM
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I also need to add that I did catch a corner of a catch basin top that had been knocked into the road and it bent a wheel and pulled my front axel out of alignment. This happened a few months after I got the trailer and I lined the axel back up when I replaced the wheel. The axels are held to the frame with u bolts.

I am wondering if there is a chance i could have bent the spindle?

how could I even check it?

Thinking if I made all the ends of the spindles square to the hitch but one was bent then it would cause a problem.
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Old 07-11-2018, 01:13 PM
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Radials=good

Is your trailers weight calculated into your total load?

Try maxing PSI and see how your tires fair.

When you replace your tires look into Maaxi radials.
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Old 07-11-2018, 01:35 PM
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I figured 4K for the boat plus 1k for trailer.
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Old 07-11-2018, 03:01 PM
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Load range for the tire is 1760 lbs, so at 7k lbs+ you have plenty of capacity there.

Inflate the tires to max pressure cold.

an axle alignment problem will certainly contribute to the problem but inside wear is a symptom of under inflation which you've readily admitted to doing.

To rule out an alignment issues/bent axles, take it to a trailer shop and get the axles inspected.
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Old 07-11-2018, 03:50 PM
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Low pressure wears both the inside and the outside of the tread. Overinflation wears the center. The relationship to the axle tips and the tongue is a non-issue. If you run your hand ACROSS the tread and the edges of the tread are "feathered", you have a toe issue. If the tread feels smooth, and the inside is worn, the tire is probably leaning in at the top (negative camber).
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Old 07-11-2018, 04:16 PM
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Originally Posted by billinstuart View Post
Low pressure wears both the inside and the outside of the tread. Overinflation wears the center. The relationship to the axle tips and the tongue is a non-issue. If you run your hand ACROSS the tread and the edges of the tread are "feathered", you have a toe issue. If the tread feels smooth, and the inside is worn, the tire is probably leaning in at the top (negative camber).
This I can understand.
Wear on the inside only would have me logically thinking it was too much weight on the axle causing it to bow, so more pressure on the inner part of the tire-thus the wear.
But I could be persuaded otherwise, let's hear the explanation as to how low tire pressure would cause th OP's issue.
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Old 07-11-2018, 04:52 PM
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Close to rated capacity of trailer, possibly over, combined with under inflated tires, will yield inside wear, followed by wear throughout.

First thing he needs to do is inflate his tires.

Second thing he needs to do is take it to a trailer shop to have axles/alignment checked.

I think there are a couple of things going on here.

Last edited by Fish'nFool; 07-11-2018 at 05:02 PM.
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Old 07-11-2018, 04:55 PM
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Tire wear on the inside generally indicates an overloaded trailer
If the internal rubber cords in your torsion axle are deteriorated (suffering what is know as torsion creep) then this too could cause the alignment issue


https://www.etrailer.com/question-208270.html
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