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Old 07-29-2015, 01:15 AM   #15
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and don't even get me started on plywood sub floors...

(Sorry for high jacking your axle alignment discussion)

Best of luck hope it works out, smooth and straight travels.
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Old 07-29-2015, 04:13 AM   #16
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I think your torsion arm is bent. By saying that, I think the bend is out board of where it mounts. Does that make sense? I have seen this a few times. It often happens when the axle is fully loaded and you hit a major pothole. I could easily be wrong.

Alignment. I hear all about this fancy tool that bends the axle. Why the heck would you do that when just by loosening the bolts and shifting the axle you gain a good 1/4" in either direction?
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Old 07-29-2015, 01:51 PM   #17
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If I understand post #1 correctly, there is a load of 3200 pounds on an axle rated at 3500 pounds. Or the normal load is over 90% of the capacity of the axle.

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Old 07-29-2015, 02:24 PM   #18
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For your new axle order you may want to consider disc brakes. According to C&G Trailer in Bellflower where I had my axles aligned they have been doing disc brake conversions and say they work great.
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Old 08-02-2015, 07:31 AM   #19
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Last summer I replaced my 27 year old axles at JC. Their price of $1,500 per axle included new brakes, installation, alignment and taxes; I had also increased the weight rating from 4,000 lbs per axle to 4,500 lbs per axle and went with the nev-r-lube hubs.
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Old 08-03-2015, 04:12 AM   #20
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Was ALIGNMENT an option or something? Is the normal installation process to just put it in and if you want it perpendicular to the road you pay a little extra for that?
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Old 08-03-2015, 09:11 AM   #21
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Frank, the alignment is necessary as the toe-in and camber have to be checked. Caster is not done. Perpendicular isn't possible as the arms from the hub to the axle move as you drive - at rest the angle is what determines when the axles need replacement (they are normally +20degrees, but once they go to a negative (and the trailer sits lower), the axles need replacing (in roughly 25 years).
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Old 08-05-2015, 08:23 PM   #22
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Here is an update to my axle issue. The vertical plates that hold the axle to the frame were bent and the camber was completely off. The axle was taken off and the torsion arm had a zero degree start angle when it should have 22.5 degrees.

The mechanic was unable to contact me because I was working in a remote part of northern Alberta where cell service is limited and replaced it with a 5200lb tortion axle. From what I understand 4000lb is pretty much the max I should put on a 67 globetrotter that probably weighs in at between 3300 - 3600 lbs.

Is this right? Will the 5200lb axle destroy my trailer?


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Old 08-06-2015, 12:31 AM   #23
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*torsion axle. Also, the replacement has a 45 degree start angle. All I have read says that this is too steep of an angle.


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Old 08-06-2015, 06:10 AM   #24
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Five years ago I had a set of Henschen axles installed on my 1976 Ambassador. The axles were not aligned by the aftermarket dealer when he installed them. The day after the axles were installed I bought a new set of tires. In less than 2000 miles I noticed that the tread was severely worn on the inside of two of my new tires.

I called the dealer. The dealer told me to take my AS to a shop in Sacramento for the alignment. The shop was set up to do realignments on truck straight front axles that used a set of chains to bend the axle instead of the AS tool. The alignment was successful and dealer reimbursed us $300 for the realignment but he refused to replace the two tires. As I was replacing the two tires I noticed that there was a fresh crack in my frame between the axles.

One of the POs may have used a similar system to straighten the axles on your AS and bent the plate. Point is, do not use a shop that employs chains to aligning truck front axles. They put too much stress on the AS frame.
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Old 08-06-2015, 08:44 AM   #25
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That's good advise however, in this case the plates were bent because the three year old axle was underrated at 3500lbs when it should have been 4000lbs. The axle more or less straightened out or bent against the camber, causing the plates to bend outwards.


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Old 08-06-2015, 09:28 AM   #26
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Quote:
Originally Posted by Cflower View Post
That's good advise however, in this case the plates were bent because the three year old axle was underrated at 3500lbs when it should have been 4000lbs. The axle more or less straightened out or bent against the camber, causing the plates to bend outwards.


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According to Henschen and Airstream engineers, a torsion axle starting angle for their products, should never be greater thasn35 degrees.

To use 45 degree starting angles, those engineers say that it causes way to many added stresses to the axle as well as the shell and chassis.

Andy
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