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06-17-2018, 11:16 AM
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#1
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Senior Member
Join Date: May 2013
Posts: 599
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Are my Axles bent?
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06-17-2018, 11:45 AM
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#2
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Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
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If all 4 tires were worn on the inside, it sounds like the axles were installed upside down. There should be a slight bow UP on the center of the axles.
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06-17-2018, 09:12 PM
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#3
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Senior Member
Join Date: May 2013
Posts: 599
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All tires have similar wear, and yes, there is a slight bow on the upside. Mainly on the front one, and not the rear
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06-18-2018, 02:12 PM
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#4
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Senior Member
Join Date: May 2016
Location: Yellowknife
Posts: 1,162
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Bring it to a place that aligns trailer tires, and they shouldn't charge too much. A bent axle isn't necessarily a concern as they will bend them to align them, but the tire wear in such short miles is a concern.
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2007 Rockwood 2701SS
2017 Ram 2500 Granite Crystal SAP Laramie 6.7L
2014 Triumph Bonneville. NH Togas, tuned
1953 GMC 9314
1982 GoldWing Interstate
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06-19-2018, 01:37 PM
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#5
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Senior Member
Join Date: Apr 2012
Location: Eastern Pa
Posts: 134
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I'm having a bent axle replaced right now. Mine resulted from hitting some obstruction on the road - I was unaware until I found a bent wheel. Fortunately, the tire didn't go flat, so I didn't notice until later. As has been stated, axles should crown slightly upward in the middle. Mine had a visible Downward bow nearer to the wheel that had been damaged. My wheel was bent UP, resulting in excessive (but even) wear on the inside of the tire. Wore it to the cord in about 1,000 miles, only on the inside of the tire.
Your irregular wear seems to indicate something more than just a bent axle, maybe a significant alignment problem.
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06-19-2018, 02:46 PM
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#6
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Senior Member
Join Date: Aug 2011
Location: Albany, GA.
Posts: 1,359
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"Trailer axles should have a slight crown up in the middle". That much is true. How much is the correct amount? I have no idea nor have I ever heard of a spec on this. IF your tires are wearing excessively on the inside you could take the trailer tires/rims to a tire shop and have them remove the tires, reverse the tires and re-install. I've known many people who have done this with their TT or 5-er to even out tire wear.
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06-19-2018, 03:03 PM
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#7
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Senior Member
Join Date: May 2015
Location: Dunn, NC
Posts: 1,199
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Bent axel
Quote:
Originally Posted by Thurman
"Trailer axles should have a slight crown up in the middle". That much is true. How much is the correct amount? I have no idea nor have I ever heard of a spec on this. IF your tires are wearing excessively on the inside you could take the trailer tires/rims to a tire shop and have them remove the tires, reverse the tires and re-install. I've known many people who have done this with their TT or 5-er to even out tire wear.
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I just replaced both of mine, 3500# rear was actually bowed "down" in the middle. Left me with 3deg. neg. camber on curb side and 2 deg. neg. on other side. Replaced both and reweighed trailer. Both axles were well under load. Prior owner must have hit a hell of a curb or pot hole.
Two new axles, 4 new springs and 4 new tires. Replaced bushings, bolts, and hardware, brake assemblies while it was apart.
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06-19-2018, 06:55 PM
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#8
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Senior Member
Join Date: Sep 2016
Location: Colorado
Posts: 1,305
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Many times axles are bent pulling away from the curb. As you pull away the rear axle will tend to swing outward hitting hard against the curb. My old Montana was like that. Ran it for years that way, but never had abnormal tire wear. Of course this is the point where many posts tangent off into the wonderful world of China bombs and their many weird wear characteristics. When in doubt, many of the alignment guys are very good. Sometimes it's just easier to replace them. That's when it would be a good time to beef things up a little.
I run Michelin LT's by the way. Just FYI.
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2003 Duramax
2017 Crusader 315
2016 Boston Whaler Montauk 150
Former Montana owner
Colorado Cruiser, Over the Pass and Down the Hill
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06-19-2018, 08:29 PM
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#9
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Senior Member
Join Date: Oct 2015
Location: Wisconsin/Florida
Posts: 1,905
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As no one has mentioned the cupping of the tires, I will speak from experience.
It most often has to do with balance. Many people, including tire shops will tell you that tire balancing on a trailer isn't necessary. False. They should be balanced. flat spots (or cupping) occures by a tire being out of round bent rim or balance. A tire that is out of balance will pound the pavement at a specific area of a tire and cause unusual wear. Those flat spots will also cause a resonating sound similar to a rumbling pulse as the tire rotates. Unusual tire wear can also happen by a tire being out of round bent rim.
When ever we install a new tire on anything travelling highway speeds, it gets balance. When we do a tire rotation on a vehicle, we have the balance checked.
On one rotation, we drove away from the dealership and one tire appeared to be out of balance. On checking, it was determined the tire was out of round. It had to be replaced. Strangely, the problem was not evident in the previous tire position.
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06-20-2018, 09:35 AM
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#10
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Senior Member
Join Date: Sep 2016
Location: Colorado
Posts: 1,305
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I agree. Balancing is key. Not only tire wear, but stress on the spindles and bearings, and lets not forget what vibration does to a trailers innards.
__________________
2003 Duramax
2017 Crusader 315
2016 Boston Whaler Montauk 150
Former Montana owner
Colorado Cruiser, Over the Pass and Down the Hill
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