Reply
 
Thread Tools Search this Thread Display Modes
 
Old 04-29-2008, 01:58 PM   #1
Rivet Master
 
Lumatic's Avatar

 
1971 25' Tradewind
1993 34' Excella
Currently Looking...
Estancia , New Mexico
Join Date: Feb 2005
Posts: 6,642
Images: 16
Blog Entries: 1
The right Dexter for '71 Tradewind?

After going to the FCU Restoration Rally (none to soon since I noticed a badly damaged axle) I know enough to be dangerous. I need to get axles asap. I thought I had it all figured out. Using the formula for determining the right axle rating 1.25x loaded trailer weight 6520# = 6875# divided by 2 for tandem axles I came up with 3437# per axle. One Dexter dealer says he won't sell an axle rated less than 3500# because they are prone to fail. I guess 3500 is close enough. I thought I could get a 3500# (#10?) axle with a 12" brake. Another dealer told me he just talked to Dexter and was told they won't put a 12" brake on a 3500# (#10) axle because the larger spindle causes arm failures. Says the smallest axle I can get with 12" brakes is a #11 which is rated at 4000#. Would this #11 be too stiff? Should I get a #10 axles with 10x2 brakes? I appreciate your advice.
__________________

__________________
Sail on silver girl. Sail on by. Your time has come to shine.
Lumatic is offline   Reply With Quote
Old 04-29-2008, 02:05 PM   #2
Moderator
 
HiHoAgRV's Avatar

 
1991 34' Excella
1963 26' Overlander
1961 26' Overlander
Central , Mississippi
Join Date: Nov 2006
Posts: 5,326
Images: 29
Blog Entries: 49
A #10 rated at 3500 lbs has the same stiffness as a #11 rated at 3500 lbs. The difference is of course, the size of the pcs used to make the axle. My '77 has the axle ratings on the placard rivited to the front of the trailer = 3,200 lbs. I'm going with 3,500 lb #11's 'cause I take alot of junk with me

There are a number of threads in this section including mine "Epiphany gets new axles". If I can help, PM me.
__________________

__________________
Hi Ho Silver RV! Vernon, Sarah, Mac the Border Collie -
A honkin' long 34' named AlumaTherapy http://www.airforums.com/forums/f205...num-54749.html
and a 26' '63 Overlander, Dolly http://www.airforums.com/forums/f109...ome-71609.html
HiHoAgRV is online now   Reply With Quote
Old 04-29-2008, 02:15 PM   #3
Rivet Master
 
Lumatic's Avatar

 
1971 25' Tradewind
1993 34' Excella
Currently Looking...
Estancia , New Mexico
Join Date: Feb 2005
Posts: 6,642
Images: 16
Blog Entries: 1
3500# #11s?

Quote:
Originally Posted by HiHoAgRV
A #10 rated at 3500 lbs has the same stiffness as a #11 rated at 3500 lbs. The difference is of course, the size of the pcs used to make the axle. My '77 has the axle ratings on the placard rivited to the front of the trailer = 3,200 lbs. I'm going with 3,500 lb #11's 'cause I take alot of junk with me

There are a number of threads in this section including mine "Epiphany gets new axles". If I can help, PM me.
I understand from talking to a dealer today that #11s range from 4000-6000# and a 3500# #11 is not available is this wrong?
__________________
Sail on silver girl. Sail on by. Your time has come to shine.
Lumatic is offline   Reply With Quote
Old 04-29-2008, 02:19 PM   #4
Patriotic
 
Chuck's Avatar

 
1973 23' Safari
North of Boston , Massachusetts
Join Date: May 2002
Posts: 4,533
Images: 260
where did you come up with this forumula for determining the right axle rating?

on my safari, the original axles were rated at 2600 lbs...the gvw is 5800 (stamped on the tag), which = 2 axles + tounge weight. I'm afraid that even a 3500lb axle would be "too stiff", let alone 4000. 10" brakes= 5 new wheel$.
__________________
Air:291
Wbcci: 3752
'73 Safari 23'
'00 Dodge Ram 1500 4x4 QC
Chuck is offline   Reply With Quote
Old 04-29-2008, 02:20 PM   #5
Moderator
 
HiHoAgRV's Avatar

 
1991 34' Excella
1963 26' Overlander
1961 26' Overlander
Central , Mississippi
Join Date: Nov 2006
Posts: 5,326
Images: 29
Blog Entries: 49
Quote:
Originally Posted by Lumatic
I understand from talking to a dealer today that #11s range from 4000-6000# and a 3500# #11 is not available is this wrong?
I've spoken with Dexter and yes it's possible to order a #11 derated to 3500 lbs. My replacement set should be here today, #11's 5.5 X 6 lug, 32 degree down angle, reversed High Profile mounts, nevr Lube Hubs, 12" brakes. A number of forum members have used Dexters #11's with the ratings below 4,000
__________________
Hi Ho Silver RV! Vernon, Sarah, Mac the Border Collie -
A honkin' long 34' named AlumaTherapy http://www.airforums.com/forums/f205...num-54749.html
and a 26' '63 Overlander, Dolly http://www.airforums.com/forums/f109...ome-71609.html
HiHoAgRV is online now   Reply With Quote
Old 04-29-2008, 02:25 PM   #6
Rivet Master
 
3Ms75Argosy's Avatar
 
1975 Argosy 26
1963 24' Tradewind
Seattle , Washington
Join Date: Aug 2002
Posts: 2,341
Images: 7
Just FYI, the #10 comes in a 6 lug by 5.5" lug pattern... in drums ONLY! The disk brakes from Dexter will not come in a 6 lug pattern... nor will the #11 Kodiaks or Dexter's fit the #10 axle stubs (as the spindle is smaller in diameter) is what Dexter engineering told me. Confusing, no?

I also think two 3500 pound axles will be too stiff. Have you weighed your trailer? My Argosy semi loaded JUST comes to 5000#'s... I'll be shooting for 6200 GVR when the axles (someday!) come.

Good luck!
Marc
__________________
3Ms75Argosy is offline   Reply With Quote
Old 04-29-2008, 02:25 PM   #7
Rivet Master
 
Lumatic's Avatar

 
1971 25' Tradewind
1993 34' Excella
Currently Looking...
Estancia , New Mexico
Join Date: Feb 2005
Posts: 6,642
Images: 16
Blog Entries: 1
Axle rating formula

Quote:
Originally Posted by Chuck
where did you come up with this forumula for determining the right axle rating?
The formula (in 2 versions) was presented this weekend at the FCU Restoration Rally.
version 1. 1.25 x loaded trailer weight divided by the number of axles
version 2. 1.5 x dry weight divided by the number of axles
__________________
Sail on silver girl. Sail on by. Your time has come to shine.
Lumatic is offline   Reply With Quote
Old 04-29-2008, 02:43 PM   #8
Patriotic
 
Chuck's Avatar

 
1973 23' Safari
North of Boston , Massachusetts
Join Date: May 2002
Posts: 4,533
Images: 260
Quote:
Originally Posted by Lumatic
The formula (in 2 versions) was presented this weekend at the FCU Restoration Rally.
Interesting. Any idea of the source? is this one person's "opinion", or did it come from someone like Dexter? Henschen? InlandRV? Airstream?

Based on those formulas, and the published empty/gross weights of my trailer, I'd need something somewhere between 2800 and 3600 lbs.

good to know that 6 bolt 10" drums are available. I guess they must not think that anything light enough to use an axle that size would actually "need" discs. {shrug} Ida know...cars much lighter than that use disc brakes.
__________________
Air:291
Wbcci: 3752
'73 Safari 23'
'00 Dodge Ram 1500 4x4 QC
Chuck is offline   Reply With Quote
Old 04-29-2008, 02:48 PM   #9
Rivet Master
 
utee94's Avatar
 
1963 26' Overlander
Austin , Texas
Join Date: Feb 2008
Posts: 2,636
Quote:
Originally Posted by Chuck
Interesting. Any idea of the source? is this one person's "opinion", or did it come from someone like Dexter? Henschen? InlandRV? Airstream?

Based on those formulas, and the published empty/gross weights of my trailer, I'd need something somewhere between 2800 and 3600 lbs.

good to know that 6 bolt 10" drums are available. I guess they must not think that anything light enough to use an axle that size would actually "need" discs. {shrug} Ida know...cars much lighter than that use disc brakes.
I guess they're counting on the TV to "assist" in the braking? Seems to me that a trailer capable of stopping itself with no assistance might be a desirable thing, but I'm no mechanical engineer...
utee94 is offline   Reply With Quote
Old 04-29-2008, 03:49 PM   #10
Rivet Master
 
3Ms75Argosy's Avatar
 
1975 Argosy 26
1963 24' Tradewind
Seattle , Washington
Join Date: Aug 2002
Posts: 2,341
Images: 7
Sorry I was not more clear - there IS a 10" disk available that fits on the #10 axles, rated up to 3500 pounds... it's just smaller (obviously) and a 5 LUG pattern vs the 12" disk 6 lug available for the #11 axles.

Again, the spindles are different on the #10 (smaller in diameter) vs. #11.
Marc
__________________
3Ms75Argosy is offline   Reply With Quote
Old 04-29-2008, 04:08 PM   #11
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Brakes.

Why in the world would anyone want to reduce the braking power of their trailer?

Remember, a good trailer braking system, will also stop the tow vehicle.

Electric brakes that have oval type magnets, have the following stopping power, PER AXLE, but only when properly adjusted.

10 inch brakes have 3500 pounds of stopping power per axle.

12 inch brakes have 5200 pounds of stopping power per axle.

When you add the tow vehicle weight to the trailer weight, as an example a tandem 23 foot trailer your way past 8000 pounds, or more.

Considering most owners never adjust the electric brakes, then the above ratings must be reduced.

Safety, safety. What a question.

I have great difficulty believing that 10 inch brakes are not a safety hazard, on any 20 foot or longer Airstream.

Try stopping your rig with trailer brakes only.

They should not sort of work, but they should absolutely get your attention, that safety IS at work.

I frankly think Dexters reasoning for using 10 inch brakes, is a huge cop out, and creates a huge false sense of security.

Andy
__________________
Inland RV Center, In is offline   Reply With Quote
Old 04-29-2008, 07:36 PM   #12
Rivet Master
 
Lumatic's Avatar

 
1971 25' Tradewind
1993 34' Excella
Currently Looking...
Estancia , New Mexico
Join Date: Feb 2005
Posts: 6,642
Images: 16
Blog Entries: 1
Dexter vs Henshen aside. I would love to have disc brakes but the way I thunk it is a 12" brake for a 4500# trailer is a good second choice and more than adequate for the job. I am not comfortable with reducing the margin of error by going to a 10" brake though.
__________________
Sail on silver girl. Sail on by. Your time has come to shine.
Lumatic is offline   Reply With Quote
Old 05-01-2008, 08:19 AM   #13
3 Rivet Member
 
Join Date: Apr 2005
Posts: 159
I just called Dexter to place my order for 2 axles. They no longer offer the #10 axle with "A" splindle Hybrid which included 12" brakes like the original AS version. "Low demand" was cited as the reason. So anyone with an older version "light AS" is out of luck with getting Dexter axles close to OEM parts.
Are there any other axle mfg available at a reasonable price? I need my axles before late August. Thanks
__________________
Live and LET live
FrenchBern is offline   Reply With Quote
Old 05-01-2008, 09:22 AM   #14
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 FrenchBern
I just called Dexter to place my order for 2 axles. They no longer offer the #10 axle with "A" splindle Hybrid which included 12" brakes like the original AS version. "Low demand" was cited as the reason. So anyone with an older version "light AS" is out of luck with getting Dexter axles close to OEM parts.
Are there any other axle mfg available at a reasonable price? I need my axles before late August. Thanks
What is a reasonable price?

Dexter also quit making what you wanted, because they lost money on them, so we have been told.

Obviously, they couldn't make money by building one or two special axles at a time, since they are not geared up for that.

Henschens production methods, allow them create one or two at a time, since they did that for Airstream for many years.

Plus, no specs are needed for a correct fitting axle, other than the trailer serial number.

Andy
__________________

__________________
Inland RV Center, In is offline   Reply With Quote
Reply


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
Dexter Axle Specs - Am I Right? P&K Axles 14 08-30-2011 05:46 PM
Right Rear Tire Wearing on Outside & Right wheels Closser together than left wheels Tnsawdust General Repair Forum 7 04-10-2009 08:49 PM
The right acid works with the right applic got polish Cleaning, Stripping & Polishing 1 07-17-2008 09:50 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:02 PM.


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.