Good Sam Club Open Roads Forum: Tech Issues: Tire mismatch
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tech Issues

Open Roads Forum  >  Tech Issues

 > Tire mismatch

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
DunnInn

Texas

Full Member

Joined: 01/17/2012

View Profile



Good Sam RV Club Member

Offline
Posted: 09/05/20 08:20pm Link  |  Quote  |  Print  |  Notify Moderator

We’ve had this rv for about 7 years and just noticed that the front tires are different sizes. It’s a 41 foot Newmar Dutch Star. Drivers side tire is 275/70, passenger side is 275/80. All others are 275/70. This seems like it should be a problem. Any ideas?

CA Traveler

The Western States

Senior Member

Joined: 01/03/2004

View Profile


Offline
Posted: 09/05/20 08:27pm Link  |  Quote  |  Print  |  Notify Moderator

Don't you have a ID tag that gives you the tire size? What is the tire DOT date for each tire? At 7+ years it's time for new tires regardless of tread etc.


2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland

Bob


wa8yxm

Wherever I happen to park

Senior Member

Joined: 07/04/2006

View Profile


Offline
Posted: 09/06/20 04:57am Link  |  Quote  |  Print  |  Notify Moderator

Sounds like the prior owner had a flat and put on a wrong size replacement.

For short term use it's ok to have an odd size tire. Short term is "Driving to tire store" but for long term use each axle should have same size and same age tires. (Or nearly same age) at least on every ride i've had

having different size tires on the front affects handling.


Home is where I park it.
Kenwood TS-2000 housed in a 2005 Damon Intruder 377


wolfe10

Texas

Senior Member

Joined: 10/08/2000

View Profile


Offline
Posted: 09/06/20 08:32am Link  |  Quote  |  Print  |  Notify Moderator

DunnInn wrote:

We’ve had this rv for about 7 years and just noticed that the front tires are different sizes.


This says it all-- the mismatched tires are at least 7 years old.

Replace with the proper size and load range per your GVWR plaque.


Brett Wolfe
Ex: 2003 Alpine 38'FDDS
Ex: 1997 Safari 35'
Ex: 1993 Foretravel U240

Diesel RV Club:http://www.dieselrvclub.org/

naturist

Lynchburg, VA

Senior Member

Joined: 04/24/2008

View Profile



Good Sam RV Club Member

Offline
Posted: 09/06/20 10:12am Link  |  Quote  |  Print  |  Notify Moderator

I agree about replacing all due to age alone. On an undriven axle, only handling would be the performance issue. Put that mismatch on a driven axle and watch the differential explode in flames within 30 miles at highway speeds. Don’t ask how I know that.





wolfe10

Texas

Senior Member

Joined: 10/08/2000

View Profile


Offline
Posted: 09/06/20 01:06pm Link  |  Quote  |  Print  |  Notify Moderator

naturist wrote:

I agree about replacing all due to age alone. On an undriven axle, only handling would be the performance issue. Put that mismatch on a driven axle and watch the differential explode in flames within 30 miles at highway speeds. Don’t ask how I know that.


Brake performance would also be effected. And if ABS brakes, it would likely throw a code.

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 

Open Roads Forum  >  Tech Issues

 > Tire mismatch
Search:   Advanced Search

Search only in Tech Issues


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2020 CWI, Inc. © 2020 Good Sam Enterprises, LLC. All Rights Reserved.