Community Forums

Frank111 · 04-25-2016, 02:59 AM

I am replacing the two front tires on my coach, they are in good shape, I replaced them last year. The reason I am replacing the front tires is part of my plan to replace all six tires over a 3 year time frame. I was thinking of moving the front tires to the inside positions of the rear duallys. The dealer tells me that I should move them to the same side on the rear duallys. His rationale was that both front tires have the same wear diameter and would run better on the same side rather than having two different tire diameters if I placed them on the inside rear positions. I can see his point, but my thought was replacing the older inside dually would be better? I value the opinions and experience of the members of this forum and come seeking wisdom.
Thanks
Frank

dabrooks · 04-25-2016, 05:04 AM

When I had my tires rotated the dealer insisted that the two front tires should go on the same side rear. I have put about 15000 miles on since and all tires are wearing even. I had to rotate them because the front end was out of line. The alignment fixed the problem and the fronts are wearing even now.

Gary RVRoamer · 04-25-2016, 10:39 AM

Yes, if you put them on a dually axle, put both together on one side or the other. The diameters of the pair of tires should be as close to identical as possible

LINADR · 04-25-2016, 10:32 PM

+1 your dealer is right. Keep the worn tires on the same side.

Mr_D · 04-25-2016, 10:35 PM

In all my years of RV'ing I've never rotated the tires, just replaced them as needed.

LINADR · 04-25-2016, 10:47 PM

I had mine rotated due to the alignment being out.

Sue46 · 04-26-2016, 01:22 AM

We have never rotated tires on our RV. They just don't get enough miles before they need to be replaced to have any wear problems. We replace ours all at the same time, just save some money each month and at 6-7 years we replace the tires.

JoeSR · 04-26-2016, 08:20 AM

Frank,

FWIW, I would follow the tire dealers advice.

You want both tires to carry the same load as possible. The two biggest things that you can control are tire pressure and tire diameter. The next two things would be tire brand and tire model.

I have read (probably on a Goodyear site) the maximum recommended tire diameter difference for dual tires. So, the professionals have thought about it.

The only other thing that should enter into the discussion would be differential slip caused by different size of tires (left to right). The differential must allow the drive axles to rotate at different speeds, so that, you can make a turn. Is there ever a case of too much continual slip? How about for different types of rear axles (open differentials vs posi-traction, my terms, could be wrong use of terms)? These are two questions in the back of my mind, but I am 99.99% sure that you will not need to be concerned about them.