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Old 01-30-2013, 12:03 PM   #15
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When I got my new Dexters the brackets were a little off. I called Dexter and they said their tolerance was + or- 1/8". Shimming is no big deal it would be a problem if they did not fit because they are too big.

Also if you order to spec make sure you emphasize high profile reverse orientation mounting brackets or they won't fit.

You can also ask for a shock mounting bolt to be installed.

If all this makes you too nervous go with Colin Hyde or Inland who knows what you nned.

PS
I have 10" brakes on my 4500 pound Tradewind and have absolutely no complaints. This was also the difference between ordering a #10 and #11 axles and considerably cheaper.
Your brakes are absolutely under rated for your trailer. Plus, if the tow vehicle brakes failed, your 10 inch brakes would never stop the trailer and tow vehicle. IMPOSSIBLE !!

Ten inch electric brakes, regardless of the manufacturer have a maximum stopping power of 3500 pounds.

Contrary to some opinions, 12 inch electric brakes cost the same exact amount as 10 inch brakes, when purchasing new axles.

The stopping power at maximum for 12 inch brakes is 6000 pounds.

Regular electric brakes should be adjusted at least every 3 to 4 thousand miles to assure that the stopping power is at or close to maximum.

The recent arrival of "self adjusting" electric brakes is a huge improvement for the RV industry, since the brakes stay at 100 percent of their rating. Their additional cost is very minor and certainly well worth it.

Since they have become availble, we have sold 4 regular 12 inch backing plates and over 400 self adjsuting backing plates.

That speaks for itself, loud and clear.

Self adjusters, adjust them selves each time the trailer backs up.

No more worries.

Andy
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Old 01-30-2013, 12:07 PM   #16
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Airstream, since 1961, has always installed 12 inch brakes on the single axle 24 foot trailers.

For that matter, they did the same thing even for the 19 and 20 foot trailers.

Ten inch brakes, by any terms, are extrememly inadequate for those trailers, and are an absolute "safety hazard".

Andy
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Old 01-30-2013, 01:34 PM   #17
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10" brakes again?

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Originally Posted by Inland RV Center, In View Post
Your brakes are absolutely under rated for your trailer. Plus, if the tow vehicle brakes failed, your 10 inch brakes would never stop the trailer and tow vehicle. IMPOSSIBLE !!

Ten inch electric brakes, regardless of the manufacturer have a maximum stopping power of 3500 pounds.



Andy
You must have missed something.

Tandem axle Trade Wind. Two axles with 10" brakes

#3,500x2=#7000 of stopping force.



#7,000
-#4,500
#2,500 reserve(excess) capacity.

Not to mention the coefficient of friction of the tires.
See post.
And this link.

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Old 01-30-2013, 01:48 PM   #18
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If anyone thinks that their trailer brakes will save them if the TV brakes fail. Good Luck with that!
I wouldn't want to be coming down a grade of much more than a 1/2 mile and have to depend on trailer brakes alone.
I don't care if they are 10" or 12", they will overheat and fade in a very short amount of time without the TV brakes.
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Old 01-30-2013, 02:22 PM   #19
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If anyone thinks that their trailer brakes will save them if the TV brakes fail. Good Luck with that!
I wouldn't want to be coming down a grade of much more than a 1/2 mile and have to depend on trailer brakes alone.
I don't care if they are 10" or 12", they will overheat and fade in a very short amount of time without the TV brakes.
Your some what correct, but the 12 inch brakes at least gives you a fighting chance.

When I was with Caravanner Insurance, we had an insured that lost his tow vehicle brakes as he was coming down the exit side of the Peace bridge in Buffalo New York.

No damage to anything, and save his family from a crash.

Alkthough he did admit that he had a little stain on the front seat.

Andy
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Old 01-30-2013, 02:26 PM   #20
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You must have missed something.

Tandem axle Trade Wind. Two axles with 10" brakes

#3,500x2=#7000 of stopping force.



#7,000
-#4,500
#2,500 reserve(excess) capacity.

Not to mention the coefficient of friction of the tires.
See post.
And this link.

Your absolutely correct.

I goofed.

But, rarely would the trailer brakes be in 100 percent perfomance.

Also, I am not aware of a tow vehicle and it's payload that would max out at 2500 pounds.

When it comes to safety, is there any, so to speak, "EXCESS CAPACITY" of brakes?

Or might it be considered a 'safety margin"?

Andy
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Old 01-30-2013, 02:41 PM   #21
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Seems like there are 3 magic phrases in the forums: 1. 10" inch brakes 2.sway control and 3. your axles are shot.
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Old 01-30-2013, 02:50 PM   #22
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Seems like there are 3 magic phrases in the forums: 1. 10" inch brakes 2.sway control and 3. your axles are shot.
Don't forget "you can't tow with that!"
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Old 01-30-2013, 07:06 PM   #23
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I am going to make a bold statement... I 110% agree with Andy. Show me any math you want, State anything you want. Justify it if you must, but 12" is the only way to go(unless you own a caravel or similar model that came with 10") I will not put anything but 12" brakes on in my shop(unless you own a caravel or similar model that came with 10"). Do as YOU see fit, but not me...
Then again, what do I know? I do it for a living not a hobby.
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Old 01-30-2013, 07:53 PM   #24
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I'm not arguing 12" brakes have more stopping power. I will even go as far as if I replace my axles again and my budget can afford it I will go with 12" brakes. I would also agree 12" brakes are the only choice for bigger and heavier units.

But, 10" Dexter brake pads are wider than 12" Dexters brake pads. Not saying they are equal, but this is a plus factor. I replaced my OEM axles with Dexters in 2008 and guess I have 20 to 25K on them, mostly mountains and all out west. I adjust and check my brakes every season. When I checked last year I still had about 50 percent of the brake pads left.
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Old 01-30-2013, 08:02 PM   #25
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I'm not arguing 12" brakes have more stopping power. I will even go as far as if I replace my axles again and my budget can afford it I will go with 12" brakes. I would also agree 12" brakes are the only choice for bigger and heavier units.

But, 10" Dexter brake pads are wider than 12" Dexters brake pads. Not saying they are equal, but this is a plus factor. I replaced my OEM axles with Dexters in 2008 and guess I have 20 to 25K on them, mostly mountains and all out west. I adjust and check my brakes every season. When I checked last year I still had about 50 percent of the brake pads left.
It is very well known however, that 10 inch brakes will heat up faster than the 12 inch brakes, and as they do, they fade, pure and simply.

Andy
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Old 02-01-2013, 11:25 AM   #26
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So.......No one has accurate axle measurements????????????
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Old 02-01-2013, 12:10 PM   #27
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It is not difficult to measure the axle. All torsion axles have a mounting plate that is used to attach the axle to the frame of the trailer. The axle plates are positioned inside the frame plates. So if you hook a tape measure to the outside of the street side axle plate and then measure to the outside of the curb side mounting plate. It will give you the dimension you need.
Then measure the face to face dimension between the brake drum surfaces. With the tire removed.
I have a '74 Argosy 26'. Perhaps the measurements are the same. I can post them if you like and you can compare measurements. Let me know.
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Old 02-01-2013, 01:07 PM   #28
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So.......No one has accurate axle measurements????????????
All someone needs is the trailer serial, "IF" they have the original specs, that permits them to order axles for you.

If you want to tackle the job yourself, then the best thing to do, is make the measurements from your trailer.

There are specs that must be provided, that assures proper fitting axles.

Andy
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