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Old 07-28-2015, 10:29 AM   #1
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1967 20' Globetrotter
Montreal , Quebec
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Axle alignment?

This is what I have

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Inside tire wear

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Negative torsion arm position

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Three year old dexter axle

On 1967 globetrotter, 3200lbs on Goodyear Marathons.




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Old 07-28-2015, 10:38 AM   #2
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Was the axle ever aligned when it was installed? What is the traveling weight of your trailer to be riding on a 3,500 lbs axle?

You can not assume that a new axle is aligned. The manufacturing technique does not ensure True Alignment.

Yes you have a problem.
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Old 07-28-2015, 10:39 AM   #3
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At 25k miles on my 2012 FC 28ft I had the same thing. Not sure if it came that way from the factory or I hit a curb which is altogether possible. In any case, I took it to C&G Trailer Repair in Bellflower, Ca. for the axle to be straightened which they did for $300. This is the only place in all of Ca. that has the tool to straighten Dexter axles. I had to call AS to find out where to have it repaired. You will probably have to do the same. Good luck.
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Old 07-28-2015, 10:51 AM   #4
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1967 20' Globetrotter
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Hi, the trailer is running at around 3200lbs. The axle was not aligned after install. I guess that I assumed it would be aligned out of factory. The tires and axle were replaced at the same time, 25-30k miles ago. The tire in the picture deteriorated fairly quickly. Doesn't seem to be bearings. Currently located in High Level, Northern Alberta, Canada, where a local truck and trailer shop is going to have a look this afternoon.

Thanks so much for having a look and any advise you might have!


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Old 07-28-2015, 11:20 AM   #5
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If you were closer to home, I would suggest a run down to Plattsburgh to see Colin Hyde.
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Old 07-28-2015, 11:24 AM   #6
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Quote:
Originally Posted by Cflower View Post
Hi, the trailer is running at around 3200lbs. The axle was not aligned after install. I guess that I assumed it would be aligned out of factory. The tires and axle were replaced at the same time, 25-30k miles ago. The tire in the picture deteriorated fairly quickly. Doesn't seem to be bearings. Currently located in High Level, Northern Alberta, Canada, where a local truck and trailer shop is going to have a look this afternoon.

Thanks so much for having a look and any advise you might have!
A 1967 20 foot Airstream, was built using a 4000 pound axle, as per Henschen and Airstream specs.

It would appear that your axle was replaced, but with an incorrect weight capacity.

All Henschen (now gone) and Dexter axles are aligned when the axle was built.

You can see that by the bend in the axle tube.

However, not all torsion axle manufacturers align their axles.

Andy
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Old 07-28-2015, 12:03 PM   #7
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Originally Posted by AnnArborBob View Post
If you were closer to home, I would suggest a run down to Plattsburgh to see Colin Hyde.

Yes, for sure!


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Old 07-28-2015, 12:09 PM   #8
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There have been other postings of people whom had same problem on 1-2 year old trailers so...there may be some inherent problems with the Dexter axles. When they aligned all four wheels, the good wheels were within 1/8" Tow-in/out and the bad wheel was in excess of 1/2". I saw C&G do the alignment and it is a very specialized tool. They bend the axle just outboard of the attachment plate. I personally would be very careful about letting people try to bend them without the proper tool. C&G told me that they purchased the tool used from Airstream for $7k.
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Old 07-28-2015, 01:36 PM   #9
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There is no way this type of axle can be aligned at the factory. It is just not in the cards because of the method of construction. My new axles that I picket up at the factory were out of alignment. Took them directly to the shop when I put them on and after about 100,000 miles on that set I had them realigned.

The "curb" gets a bad wrap here. Just as this type of axle can not be aligned when they are made, it would take one hell of a curb hit to misalign one.

If you replace the axle just factor in the cost of aligning it.

Now if you want to see how far the axle is out get a coupe of friends and a ball of heavy twine. Have one hold the twins at the rear center of the tire and have another, while holding the twine out past the coupling on the tongue, move the twine in until it just touches the front edge of the tire. Now have another measure from the twine to the center of the coupler while at right angles to the twine. Repeat on the other side, assuming that tire is waring normally, and the difference will tell if the axle is out. You can check camber angle with a simple level long enough to touch top and bottom of the tire and placed vertically across the center line of the tire.
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Old 07-28-2015, 02:09 PM   #10
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I agree that this type axle is difficult to align to any given trailer but I do believe that, in my case, Airstream did align them. I know that align all new trailers as C&G told me that the reason they were able to purchase Airstream's old alignment tool is that they had made/found a new one. So..pretty sure they align at the factory. The other anecdotal information is C&G told me that most all trailers that are brought in with misalignment, it is the curb side front that is the problem, ie the tire which is leading when moving forward. It to believe that all newly installed axles should be aligned.
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Old 07-28-2015, 02:35 PM   #11
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Axles can/should be checked for toe in/out before installing.Simple to do with a couple of straightedges clamped to the wheel mounting surface.can be done while still attached to the pallet they ship on.The factory bend in axle tube is for camber.
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Old 07-28-2015, 07:10 PM   #12
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This is really good info, thank you!


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Old 07-29-2015, 01:02 AM   #13
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1972 25' Tradewind
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Axles, just when you think you have it figured a new angle pops up. ( no pun intended) It amazes me as a newbie on a part, that needs replacing on every AS there is no sticky on 'facts' of axle replacement. It's not rocket science, yet it is confusing with endless threads over years discussing it. Then you toss in the east coast west coast axle dealer debate, the rocket scientists holding the holy grail of info for a few dollars on I'm sure a low margin item. Rant over.
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Old 07-29-2015, 01:07 AM   #14
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Oh by the way, I need two axles on my newly acquired '73 25 ft tradewind. Any suggestions?
I'll order today... ( with brakes and a looooong list of parts to come)
Cheers
Dave

<<< that's in Canada.
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