Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-10-2011, 01:27 AM   #99
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Alignment of an axle is not necesaary when the trailer is a 1968 and newer.

The bolt holes take care of that for you.

From 1967 and older, you measure from the "CENTER" of the jack post, to the lower forward corner of the axle mounting bracket.

That dimension must be exactly the same.

By actual measurement, 1/8 of an inch off will make a 31 foot trailer, tow dog leg by 3 inches. 1/4 inch will make it tow dog leg 6 inches.

Towing a trailer dog leg, causes huge wear on tires, plus making the trailer tow with a large degree of instability.

I know, I had one with a 3/8 inch difference. It towed dog leg 9 inches.

The difference can be realigned back into the axles, if the shop knows how.

Andy
__________________

__________________
Inland RV Center, In is offline   Reply With Quote
Old 05-10-2011, 06:05 AM   #100
Well Preserved

 
1993 21' Sovereign
Colfax , North Carolina
Join Date: Jun 2003
Posts: 20,190
Quote:
Originally Posted by Globie64 View Post
All this information is great to have- I'm wondering how to decide what kind of axle to specify, or if it really matters between manufacturers. It seems pretty straight forward to install, what about alignment once the thing is back together?
Quote:
Originally Posted by Top View Post
For alignment, measure between each hub and the center of the tongue jack. They should be within 1/8" If not adjustment is necessary.
Quote:
Originally Posted by Globie64 View Post
ok, easy enough. thanks
For your little Globetrotter, precise alignment isn't necessary, since you only have the one axle. Your 1/8" alignment will be "close enough". At worst, the trailer will track maybe an inch out of straight, and won't wear the tires funny, since you only have one per side, and they won't be working against each other.
__________________

__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
overlander63 is offline   Reply With Quote
Old 05-10-2011, 07:22 AM   #101
Rivet Master
 
soldiermedic's Avatar
 
Currently Looking...
Florissant , USA
Join Date: Oct 2006
Posts: 5,083
Quote:
Originally Posted by overlander63 View Post
For your little Globetrotter, precise alignment isn't necessary, since you only have the one axle. Your 1/8" alignment will be "close enough". At worst, the trailer will track maybe an inch out of straight, and won't wear the tires funny, since you only have one per side, and they won't be working against each other.

+1. Single axle, small trailer, good enough...now GIT R DONE!
__________________
Streaming Soldiers Blog
soldiermedic is offline   Reply With Quote
Old 05-12-2011, 11:11 PM   #102
Rivet Master
 
Trex's Avatar

 
1981 20' International
Shasta Lake City , California
Join Date: Sep 2010
Posts: 1,113
Blog Entries: 7
TOP, Trailer of Personnel... thanks for the intel today on the phone. Thanks again,
__________________
"Sometimes you eat the bear, and sometimes, well, he eats you." -the Stranger-

Come and see me at: http://www.airforums.com/forums/f185...-71804-60.html
Trex "Airstream Nomad"
Trex is offline   Reply With Quote
Old 05-13-2011, 09:18 AM   #103
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Quote:
Originally Posted by lahrfarm View Post
Where did you get these numbers? They dont really sound like "brake stoping power" numbers. They sound sound more like GVW per axle numbers. I've never heard of anything being engineered to do the minimum with no safety designed in. What I am saying is a 3500# axle doesnt fail at 3501#, so why would they design the brakes to do just that. If they know we wont adjust them, and they put in wrighting,
"At 50 percent, 10 inch brakes can then properly stop 1750 pounds per axle, and 12 inch brakes can properly stop 3100 pounds per axle", then they would get sued everytime one failed.
The numbers come from the brake manufacturers catalogs.

All electric brakes will fade when they get hot enough.

That being the case, check 10 inch and 12inch brakes on the same size trailer, and see how fast the 10 brakes fade out.

Amazing observation.

Andy
__________________
Inland RV Center, In is offline   Reply With Quote
Old 05-13-2011, 09:52 AM   #104
Rivet Master<br><img src="/ugala/forums/images/5rivet.gif">
 
CanoeStream's Avatar

 
2006 25' Safari FB SE
St. Cloud , Minnesota
Join Date: Aug 2003
Posts: 13,279
Images: 19
Blog Entries: 3
Andy, based on circumference, a 12' brake has 1.2 times the circumference of a 10". That is not inconsequential and certainly gives an extra margin for those inexperienced enough to be using their brakes that much. I'm glad to have a tranny as controllable as my Allison, but gearing down should be available to any competent tow vehicle as the first resort.

I know that 12" vs. 10" is part of the discussion for replacement axles; ie, Henschen spec'd vs. Dexter vs. Axis. The answer I've never seen is: Jackson Center is installing Dexters on new Airstreams. Are these 10" drums?
__________________
Bob

5 meter Langford Nahanni

CanoeStream is offline   Reply With Quote
Old 05-13-2011, 10:56 AM   #105
Rivet Master
 
Globie64's Avatar
 
1964 19' Globetrotter
The Sea Ranch , California
Join Date: Dec 2004
Posts: 1,377
Images: 18
Blog Entries: 3
10 vs 12: do the bigger brakes require new rims? I'm imagining that a new axle will make tire changing a LOT easier, but the bigger brakes might make it more difficult? I mention this after having to change tires twice and having to let air out to get them in and out of the wheel well. This would be less of an issue except for the nearest gas station with air is 10 miles away. Fortunately I was able to use the compressor at the nearby corporation yard for our area, but what a colossal pain, I can't imagine doing it on the road.
__________________
Wherever you go, there you are
Globie64 is offline   Reply With Quote
Old 05-13-2011, 11:22 AM   #106
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Quote:
Originally Posted by CanoeStream View Post
Andy, based on circumference, a 12' brake has 1.2 times the circumference of a 10". That is not inconsequential and certainly gives an extra margin for those inexperienced enough to be using their brakes that much. I'm glad to have a tranny as controllable as my Allison, but gearing down should be available to any competent tow vehicle as the first resort.

I know that 12" vs. 10" is part of the discussion for replacement axles; ie, Henschen spec'd vs. Dexter vs. Axis. The answer I've never seen is: Jackson Center is installing Dexters on new Airstreams. Are these 10" drums?
12 inch drums weigh 33 pounds and 10 inch drums weigh 22 pounds each.

That in itself, says the 12 inch drums have much more surface to dissipate the heat generated when braking, than the 10 inch drums.

SAFETY is the real issue, first and foremost and then stopping power.

Seven inch brakes are also available for those that wish to down size.

What Airstream may do with brakes today, is dictated by Dexter, not Airstream.

Andy

Andy
__________________
Inland RV Center, In is offline   Reply With Quote
Old 05-13-2011, 12:01 PM   #107
Rivet Master
 
Globie64's Avatar
 
1964 19' Globetrotter
The Sea Ranch , California
Join Date: Dec 2004
Posts: 1,377
Images: 18
Blog Entries: 3
Andy, I'm with ya on the brake size- larger brakes give you reserve capacity and a better margin of safety.
__________________
Wherever you go, there you are
Globie64 is offline   Reply With Quote
Old 05-13-2011, 12:56 PM   #108
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Quote:
Originally Posted by Globie64 View Post
10 vs 12: do the bigger brakes require new rims? I'm imagining that a new axle will make tire changing a LOT easier, but the bigger brakes might make it more difficult? I mention this after having to change tires twice and having to let air out to get them in and out of the wheel well. This would be less of an issue except for the nearest gas station with air is 10 miles away. Fortunately I was able to use the compressor at the nearby corporation yard for our area, but what a colossal pain, I can't imagine doing it on the road.
Bad axles make tire changing difficult, never the size of the brakes.

Of course changing 14 inch wheels to 16 inch wheels, will make it more difficult, as well.

Andy
__________________
Inland RV Center, In is offline   Reply With Quote
Old 05-13-2011, 02:52 PM   #109
Rivet Master
 
bwoodtx's Avatar
 
1997 30' Excella
1961 26' Overlander
1954 22' Flying Cloud
1981 28' Airstream 280
San Antonio , Texas
Join Date: Jul 2009
Posts: 1,365
Quote:
Originally Posted by Inland RV Center, In View Post
12 inch drums weigh 33 pounds and 10 inch drums weigh 22 pounds each.

That in itself, says the 12 inch drums have much more surface to dissipate the heat generated when braking, than the 10 inch drums.

SAFETY is the real issue, first and foremost and then stopping power.

Seven inch brakes are also available for those that wish to down size.

What Airstream may do with brakes today, is dictated by Dexter, not Airstream.

Andy

Andy
So, is JC puttin' 10" or 12" on todays airstreams?????
__________________
Bruce
WBCCI# 9259 AIR# 38927 TAC-TX 14
Stop Littering-Spay & Neuter-- Adopt From Rescue
He is your friend, your partner, your defender, your dog. You owe it to him to be worthy of such devotion.
bwoodtx is offline   Reply With Quote
Old 05-14-2011, 09:57 AM   #110
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Quote:
Originally Posted by bwoodtx View Post
So, is JC puttin' 10" or 12" on todays airstreams?????
They are using both, depending on the model.

Andy
__________________
Inland RV Center, In is offline   Reply With Quote
Old 05-19-2011, 08:11 PM   #111
Top
Always learning
 
Top's Avatar
 
1972 29' Ambassador
1962 19' Globetrotter
1951 21' Flying Cloud
Central , Texas
Join Date: Oct 2010
Posts: 2,779
Images: 24
Blog Entries: 2
Send a message via Yahoo to Top
The finished product

I have Abby's axles all installed and she's off the jack stands so I took a picture to show the change in ride height.

Before. December 2010.
Click image for larger version

Name:	DSC_0062.jpg
Views:	153
Size:	298.9 KB
ID:	130234
After
Click image for larger version

Name:	DSC_0400.jpg
Views:	152
Size:	338.2 KB
ID:	130233

She should be smooth as silk!
__________________
Lance

Work is never done, so take time to play!
Top is offline   Reply With Quote
Old 05-19-2011, 09:36 PM   #112
Rivet Master
 
bwoodtx's Avatar
 
1997 30' Excella
1961 26' Overlander
1954 22' Flying Cloud
1981 28' Airstream 280
San Antonio , Texas
Join Date: Jul 2009
Posts: 1,365
That's quite a difference, Top. I look forward to seeing all of your hard work at the rally.
__________________

__________________
Bruce
WBCCI# 9259 AIR# 38927 TAC-TX 14
Stop Littering-Spay & Neuter-- Adopt From Rescue
He is your friend, your partner, your defender, your dog. You owe it to him to be worthy of such devotion.
bwoodtx is offline   Reply With Quote
Reply

Tags
axis, axle, henschen, measurements, dexter axles


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Video - Successful Axle Job on 1964 Safari JitneyBead Axles 10 05-21-2012 10:07 AM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:45 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.