Reply
 
Thread Tools Search this Thread Display Modes
 
Old 12-05-2007, 09:04 PM   #1
30' 1999 Excella
 
Tin Diesel's Avatar
 
Kingwood , Texas
Join Date: Sep 2005
Posts: 250
Images: 4
Send a message via Yahoo to Tin Diesel
Axle upgrade question

I've searched the axle forum for information on upgrades, but haven't found a lot of info - maybe my question is too specific. Here goes:

next month we're taking our 1999 30' Excella to Roger Williams (near Dallas) for new axles, disc brakes and centramatics. The arm angle on the existing axles is flat, maybe slightly negative, so I'm sure the axle is shot.

The GVWR is 8300 lbs. GAWR says 4000 lbs each axle. I believe the trailer weighs about 7300 lbs empty.
I don't pretend to understand exactly what GVWR and GAWR means. However, Roger Williams said they are going to install new Henschens with a 4000 lb rating and 35 degree angle.

What does the 4000 lb rating tell me? Two axles = 8000 lbs carrying capacity? Isn't that a pretty slim margin on a trailer that starts at 7300 lbs empty and has a GVWR of 8300?

I'm concerned about the axle ratings. I suspect my axles went bad after only 8 years because the previous owner let it sit for 3 years (heart attack recovery). I read on this forum that's bad. But I'm still concerned...

Can I get heavier axles? Should I? How much heavier? I saw a thread that said you can increase 10% over the factory original. But Andy says don't go too high or you'll beat up your Airstream.

Any suggestions? We don't run light. We bring everything we need to stay comfortable!

Thanks.
__________________

__________________
Hey, its the only way to be sure!
Tin Diesel is offline   Reply With Quote
Old 12-05-2007, 09:26 PM   #2
_
 
. , .
Join Date: Dec 2004
Posts: 8,812
hey tin d'

i'm no axle 'pert either but here goes...

while the axle rating (for 2) is close to the gvwr of the trailer...

don't forget some of the load is on the tongue.

for example IF your tongue is 700-1000lbs, then the axles are only carrying 6-7000 lbs.

make sense?

so i agree you could uprate slightly but more than 400 lbs would be wasted capacity and stiffness.

the guys at rw do great work! you will love the disc brakes too.

cheers
2air'
__________________

__________________
all of the true things that i am about to tell you are shameless lies. l.b.j.

we are here on earth to fart around. don't let anybody tell you any different. k.v.
2airishuman is offline   Reply With Quote
Old 12-06-2007, 02:29 AM   #3
Site Team
 
azflycaster's Avatar
 
1975 25' Tradewind
Dewey , Arizona
Join Date: Mar 2005
Posts: 12,127
Images: 62
Blog Entries: 1
I am not an expert either, but I think you can also deduct the weight of the axles, wheels, tires and brakes from the total. These items are all part of the GVWR but are not held up by the axles.

I am surprised to see 8 year old axles go flat even if they sat for 3 years. Was the trailer over loaded when it sat? Maybe they used it for storage or something.
__________________

Richard

Wally Byam Airstream Club 7513
azflycaster is offline   Reply With Quote
Old 12-06-2007, 06:05 AM   #4
4 Rivet Member
 
Currently Looking...
Two Harbors , Minnesota
Join Date: Aug 2006
Posts: 311
Quote:
Originally Posted by Tin Diesel
next month we're taking our 1999 30' Excella to Roger Williams (near Dallas) for new axles, disc brakes and centramatics.
Hi Tin Diesel...for info purposes...what is the estimated cost of the work you are going to have done?

Sounds like a good idea...new axles AND new disc brakes...keep us posted on the results...Tom R
__________________
TomR is offline   Reply With Quote
Old 12-06-2007, 08:21 AM   #5
30' 1999 Excella
 
Tin Diesel's Avatar
 
Kingwood , Texas
Join Date: Sep 2005
Posts: 250
Images: 4
Send a message via Yahoo to Tin Diesel
Estimated costs

Labor: $88/hr

Axles: $500 each, 6 hrs labor
Brakes: $1,920 components, 10 hours
Centramatics: $70.98 each, no labor.

We're also having new 'tall' wrap protectors put on because I went too fast through some just-laid chip'n'seal road resurface. We're also getting new wheels because one of the original steel rims had developed a leak from a split.

I'll let you know how it goes.

Yes, it is worrisome that the axles went flat so quickly. I don't know to what extent the PO left it loaded while it sat.
__________________
Hey, its the only way to be sure!
Tin Diesel is offline   Reply With Quote
Old 12-06-2007, 08:45 AM   #6
Rivet Master
 
HowieE's Avatar
 
1991 34' Excella
Princeton , New Jersey
Join Date: Aug 2003
Posts: 6,814
Images: 12
You could increase the axles to 4,200 lbs or greater for your own reasons of carring a lot of stuff but that will not change the manufactures tag on the trailer. I mention that because there is talk that insurance companies are beginning to consider the total weight of a trailer involved in an accident as a means of getting out from under the claim.

The axles on my trailer were bad when I bought it at 3 years old. The trailer had sat in Fl. and I think the heat and lack of movement was the factor. The rubbers in the axles may need periodic movement to keep them soft.

The originals, 3, were 2,800 lb axles, and I repalced them with 3,200 lb axles not so much for total load, but we do carry some stuff, but rather as a safty if I had to run with a flat.
__________________
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

HowieE is offline   Reply With Quote
Old 12-06-2007, 05:50 PM   #7
30' 1999 Excella
 
Tin Diesel's Avatar
 
Kingwood , Texas
Join Date: Sep 2005
Posts: 250
Images: 4
Send a message via Yahoo to Tin Diesel
ongoing update

Turns out my original axles were 3800 lb, so the 4000 lb rating on the new ones is in fact an 'upgrade'. Good - makes me feel like I'm getting something for my money!!!

Now I'm trying to find the right wheel size. Its turning out to be tougher than I would have thought.
__________________
Hey, its the only way to be sure!
Tin Diesel is offline   Reply With Quote
Old 12-06-2007, 06:03 PM   #8
Rivet Master
 
HowieE's Avatar
 
1991 34' Excella
Princeton , New Jersey
Join Date: Aug 2003
Posts: 6,814
Images: 12
Since the 15 in trailer tires are now made in China several of us have gone to 16 in wheels. Do a search and you will see the comments.
__________________
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

HowieE is offline   Reply With Quote
Old 12-06-2007, 06:31 PM   #9
30' 1999 Excella
 
Tin Diesel's Avatar
 
Kingwood , Texas
Join Date: Sep 2005
Posts: 250
Images: 4
Send a message via Yahoo to Tin Diesel
16" wheels

yeah, David Tidmore at Roger Williams suggested a switch to 16", since I have to get one new rim anyway, and my Goodyear Marathons are 2.5 years old.

But I'm trying to find a 16", 6 bolt, 6" or 7", 5.5" center with ZERO offset.
The zero offset is eluding me so far, although some inquiries remain unanswered.

Also will be switching to Michelin LTX.

This repair is starting to get REALLY expensive!
__________________
Hey, its the only way to be sure!
Tin Diesel is offline   Reply With Quote
Old 12-07-2007, 08:45 AM   #10
Rivet Master
 
HowieE's Avatar
 
1991 34' Excella
Princeton , New Jersey
Join Date: Aug 2003
Posts: 6,814
Images: 12
Mine came from The trailer tire and wheel supermarket. They have what you are looking for. Style Series #4 lower right corner of the home page

http://www.trailertiresandwheels.com/
__________________
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

HowieE is offline   Reply With Quote
Old 12-07-2007, 10:22 AM   #11
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 Tin Diesel
Turns out my original axles were 3800 lb, so the 4000 lb rating on the new ones is in fact an 'upgrade'. Good - makes me feel like I'm getting something for my money!!!

Now I'm trying to find the right wheel size. Its turning out to be tougher than I would have thought.
The upgrade to 4000 pound, should more than cover your needs.

David ordered the Henschen 4000 pound axles, with a 35 degree starting angle from us.

Andy
__________________
Inland RV Center, In is offline   Reply With Quote
Old 12-07-2007, 12:45 PM   #12
30' 1999 Excella
 
Tin Diesel's Avatar
 
Kingwood , Texas
Join Date: Sep 2005
Posts: 250
Images: 4
Send a message via Yahoo to Tin Diesel
What goes around comes around!

Quote:
David ordered the Henschen 4000 pound axles, with a 35 degree starting angle from us.
LOL!!!
Well good! You gave me the original advice on what was wrong with my axle. I would have loved to take the unit to your shop, but Dallas is A LOT closer! So I'm glad you got a piece of the action.
__________________
Hey, its the only way to be sure!
Tin Diesel is offline   Reply With Quote
Old 12-07-2007, 04:36 PM   #13
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 Tin Diesel
LOL!!!
Well good! You gave me the original advice on what was wrong with my axle. I would have loved to take the unit to your shop, but Dallas is A LOT closer! So I'm glad you got a piece of the action.
Well, Kingwood is a little north of Houston, and just a tad east of California.

The important thing is that your trailer suspension system and disc brakes, will be taken care of, by one of the best, Roger Williams.

David and Pat, from Roger Williams, and I have a great working relationship.

Even though it may have been indirectly, we are glad that we could help you and your Airstream.

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
Bambi Quick Silver Axle upgrade. HOG-I Axles 2 10-31-2007 12:04 AM
Axle Upgrade on 16' CCD RDM16CCD Axles 8 12-01-2006 10:10 PM
Axle upgrade, single to double William8979 Axles 17 02-13-2005 09:23 AM
Axle upgrade markdoane Axles 12 04-14-2004 07:42 PM
Upgrade your old axle! markdoane Axles 0 11-20-2003 05:23 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:26 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.