Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-03-2008, 03:08 PM   #1
Rivet Master
 
adonh's Avatar
 
1976 31' Sovereign
Missouri City , Texas
Join Date: Mar 2007
Posts: 1,233
Images: 1
Blog Entries: 6
16" tires on a 31' Sovereign

I am following up on a possible change in wheels and tire size on my 1976 31'sovereign. Thanks to "Beginner" for giving me some details on the BF Goodrich LT Commercial T/A 225/75 16" load range D tire and the eagle alloy wheels that he is using on his 1984 A/S. Has anyone switched to the 16" wheels and tires on a 76 or mid 70's A/S. Is there any problems with the slightly larger tire fitting in the wheel well without rubbing.

Thanks Don
adonh is offline   Reply With Quote
Old 03-03-2008, 03:16 PM   #2
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,497
Images: 1
Quote:
Originally Posted by adonh
I am following up on a possible change in wheels and tire size on my 1976 31'sovereign. Thanks to "Beginner" for giving me some details on the BF Goodrich LT Commercial T/A 225/75 16" load range D tire and the eagle alloy wheels that he is using on his 1984 A/S. Has anyone switched to the 16" wheels and tires on a 76 or mid 70's A/S. Is there any problems with the slightly larger tire fitting in the wheel well without rubbing.

Thanks Don
Your proposal, depends alot on the condition of the axles.

If the axles are borderline or close to it, then when you hit a bump, the top of the tires will hit the wheel well cover.

If your covers are metal, you cut into the tires.

If your covers are plastic, you can easily start a fire.

Andy
__________________
Andy Rogozinski
Inland RV Center
Corona, CA
Inland RV Center, In is offline   Reply With Quote
Old 03-03-2008, 05:01 PM   #3
Rivet Master
 
HiHoAgRV's Avatar

 
1991 34' Excella
1963 26' Overlander
1961 26' Overlander
Central , Mississippi
Join Date: Nov 2006
Posts: 5,919
Images: 29
Blog Entries: 49
If you have more than 1/2" clearance with the currnet tires, the new ones should clear, being only 1/2" larger in the radius (if your current ones are also 225's). It's tough to check the upper clearance but you might try backing one tire onto a ramp untill the other is off the ground, then see how close it is to the top of the wheel wells. Other Forum members have done the 16" swap.
__________________
Hi Ho Silver RV! Vernon, Sarah, Mac the Border Collie(RIP) -
A honkin' long 34' named AlumaTherapy https://www.airforums.com/forums/f20...num-54749.html
and a 26' '63 Overlander, Dolly https://www.airforums.com/forums/f10...ome-71609.html
HiHoAgRV is offline   Reply With Quote
Old 03-03-2008, 06:27 PM   #4
Rivet Master
 
1976 25' Caravanner
Vintage Kin Owner
Campton , New Hampshire
Join Date: Feb 2006
Posts: 1,113
Your '76 originally came with 700-15 tires which had a diameter of 29.2 " , your proposed tires have a diameter of 29.4 " . Unless something is drastically wrong with the running gear 2 tenths of an inch should not be a problem.
ticki2 is offline   Reply With Quote
Old 03-03-2008, 08:14 PM   #5
Rivet Master
 
1984 31' Excella
Broken Arrow , Oklahoma
Join Date: Jan 2005
Posts: 673
Images: 11
Tire Size

According to the shop manual for my 1984 31 Foot Excella the original tire was a Michelin XCA 7.00-15 8 ply (Load Range D). This tire was a radial. I have two that I bought off another member of our unit for measurement verification purposes.
The following is a reply from Michelin answering the question; what was the outside diameter of the Michelin XCA 7.00-15 8 ply.

Reply From Consumer Relations‏From:Webtire, Michelin (michelin.webtire@us.michelin.com)You may not know this sender.Mark as safe|Mark as unsafeSent:Tue 1/17/06 12:02 PMTo:

Beginner:

Thank you for visiting our Web site and sending us your e-mail.

In response to your inquiry:

"Once upon a time you made the XCA in the 700-15 load range D. I need to
know a couple of things about the tire. First what was the outside diameter
and Max width of the tire."

_________________________________________________


7.00R15 XCA

overall diameter = 29.4"

max overall width = 7.8" on a 6.0" wide wheel.

Please take a moment to respond to a short survey that will
assist us in providing better service to you.

Paste the line below into your browser:

http://www.asurvey.net/michelin/?34.33333.12


If you have additional questions, please respond to this email
or you may call us at 1-800-847-3435 (toll-free) between
8:30AM and 6:00PM Eastern Time Monday through Friday to allow
one of our Consumer Relations Representatives to assist you.

Michelin North America
Consumer Relations Department

(Please Do Not Delete the line below.)
Email ID: 1512781

The Max Outside Diameter (OD) of the B. F. Goodrich Commercial T/A is 29.4 inches as can be verified at this website:
BFGoodrich Tires | Commercial T/A® All Season | Tire Sizes & Specs

The Width of the BFG Commercial T/A is 8.8 on a 6 inch wide rim.

The Goodyear marathons width is 8.7 inches which can be verified at this web site:http://www.goodyear.com/rv/pdf/rvbrochure.pdf

To summerize:
XCA 7.00-15 8 ply;
Max width 7.8 on a 6" wheel.
Max OD 29.4 inches.

Goodyear Marathon:
Max width 8.7 inches on a 6 inch wheel.
Max OD 28.3 inches.

B. F. Goodrich Commercial T/A.Max width 8.8 on a 6 inch wheel.
Max OD 29.4 inches.

If the Commercial T/A will hit the inner fender then the original tire that Airstream put on your trailer and mine will hit the inner fender.
I don't think so.
All I have done is return to the original tire that Airstream put on my trailer in the first place.
Any more questions, feel free to ask.

Beginner
Beginner is offline   Reply With Quote
Old 03-04-2008, 10:34 AM   #6
Rivet Master
 
adonh's Avatar
 
1976 31' Sovereign
Missouri City , Texas
Join Date: Mar 2007
Posts: 1,233
Images: 1
Blog Entries: 6
Thanks for the input.
adonh is offline   Reply With Quote
Old 03-04-2008, 11:03 AM   #7
Tramp Streamer
Commercial Member
 
ArtStream's Avatar
 
1995 28' Excella
Artist , at Large
Join Date: May 2004
Posts: 2,002
Images: 65
Blog Entries: 1
Hi Adonh!

There are many, many threads on tires.
There are also many closet Airstreamers who have gone over to 16" rims and LT tires.

On my 1995 Excella, I myself have switched to 16" steel rims and Michelin XPS tires (load range D). and know many who have.

The rims were ordered from Discount tire. Standard 16" 5 bolt trailer rims with a 0 offset.

They fit fine, even with my Centramatics in place.

Note, each Airstream wheel-well cutout is a little different, depending on the day of the week

A little cutting and readjusting of the wheel-well trim
gave me more clearance than the original setup.

Best,
Michael
ArtStream is offline   Reply With Quote
Old 03-04-2008, 02:40 PM   #8
Tramp Streamer
Commercial Member
 
ArtStream's Avatar
 
1995 28' Excella
Artist , at Large
Join Date: May 2004
Posts: 2,002
Images: 65
Blog Entries: 1
Quote:
Originally Posted by ArtStream

The rims were ordered from Discount tire. Standard 16" 5 bolt trailer rims with a 0 offset.
CORRECTION
the above should read
Standard 16" 6 bolt trailer rims with 0 offset

Thanks to Beginner for the heads-up

Michael
ArtStream is offline   Reply With Quote
Old 03-04-2008, 05:42 PM   #9
Rivet Master
 
adonh's Avatar
 
1976 31' Sovereign
Missouri City , Texas
Join Date: Mar 2007
Posts: 1,233
Images: 1
Blog Entries: 6
Reday to make a decission

Ok I am down to 2 possible tire /wheel options.

Option 1- Is the 16" BF Goodrich commerical TA tire and the Eagle alloy rims that Beginner posted. these are good looking tires and rims.

BF Goodrich tire maybe just a little over $100 and the whels around $95


Option 2 - Is the Maxis ST225/75R15 load range D tires and the wheels below:

Maxxis.com

http://www.trailertiresandwheels.com...product/AW1507

Another goodlooking tire and wheel.

Price of the Maxis at Discount tire is right at 4100 mounted and the wheels are around $85.

So price is not the big deciding factor. Thanks for all of the input and now I will sleep on it.

Don
adonh is offline   Reply With Quote
Old 03-05-2008, 10:23 PM   #10
Rivet Master
 
truckasaurus's Avatar
 
1960 33' Custom
Athens , Georgia
Join Date: Jun 2005
Posts: 1,373
Images: 25
i've been searching through the forum looking for replacement tires. Having selected the Goodyear commercial ta 225/75 16's load range D I tried to source a set and couldn't find them. I got this response from Michelin "Thank you for your interest in BFGoodrich tires and for sending us your
email. We appreciate the opportunity to serve you.

Unfortunately, the load range D has been discontinued and no longer
available. However, the load range E LT225/75R16 Commercial T/A is
available."

Back to the search I guess.
__________________
1960 Sovereign 33' Pacific Railroad Custom
truckasaurus is offline   Reply With Quote
Old 03-16-2008, 04:29 PM   #11
Rivet Master
 
adonh's Avatar
 
1976 31' Sovereign
Missouri City , Texas
Join Date: Mar 2007
Posts: 1,233
Images: 1
Blog Entries: 6
That's correct, the BF Goodrich Commercial T/A LT 225/75R 16/D has been discontinued. I was all set to get these tires for my 1976 31' Sovereign. Here is a Uniroyal Commercial LT 225/75R 16/D tire that seems to have the same specs as the Goodrich tire. What about these?

Thanks Don

Uniroyal | Laredo HD/H | Tire Sizes & Specs
adonh 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
Anyone road tested Towmaster tires Kistler Tires 38 03-04-2014 09:06 AM
1978 31' Sovereign Rear Bath "International" TomR 1974 - 1979 Sovereign 13 09-14-2006 07:38 AM
My new "Doghouse" - 1970 31' Sovereign wivell Member Introductions 6 08-16-2006 08:00 AM
Best tires for a 1974 31' er? booman80 Tires 11 05-29-2006 07:22 PM
1972 31' w/Propane Furnace "no heat all fan" FarHarley Furnaces, Heaters, Fireplaces & Air Conditioning 4 11-25-2004 08:34 AM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



All times are GMT -6. The time now is 08:17 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.