Newbie question here:If I replace only two tires at a time on my new-to-me Class C, which do you recommend I start with?I'm thinking inside rear would be the best place to have fresh tires, but a case could be made for the front, steer tires as well. Is it a problem to run mismatched (same size/brand, new & old) on the duals? I may bite the bullet and replace all six (or seven) at once, but I'm weighing the options. The tires on it are Michelins, and are antique by RV standards. We're off to Discount Tire soon for an inspection and price quote. I don't plan to travel more than 100 miles from home this season.Thoughts?

I would replace the steer tires. Or, all four rear tires. If you replace the inner duals and the older tire blows out, it puts all the weight and stress on the remaining dual. It can damage the good tire.I think it's best to replace all tires at the same time. Then, start saving for the next set. :(JMO

On my car, I replace the two most worn tires, put the new ones on the rear and the old ones on the front.On my RV, I replace all 6 at the same time. I don't replace them because they are worn, I replace them because they are old, and they are all the same age.Here is a Michelin video showing why to put the new tires on the rear if only replacing two:https://youtu.be/oa9hzcjdi5Q

Find the lowest online price you can and take that with you to Discount Tires. I've done this twice so far and both times they were very willing to match the price with no hassles. I bought some tires a few weeks ago and the best price I found was from Discount Tires Direct. The local store had no issues with matching the price at $50 lower per tire. First time I bought Toyo tires from them and they just had to order them in even though it's a tire brand they don't sell.

If you must replace only two of the rear tires, do both tires on one side. If you do only the inner or only the outer tires, you will end up with the tires in each pair being different diameters and circumferences. Since they must rotate together at the same speed, one or both will be forced to scrub somewhat as you drive and wear rapidly.For similar reasons, it's rather important to make sure that both tires in each pair are inflated to the same pressure...more so than to ensure that both sides are equal in pressure to each other, though of course that's the general goal.Better than replacing two tires in the back is to replace all four at once. If you are needing to replace tires two by two, I'd suggest doing the steer tires first, then with the next pair moving the steer tires to one side of the rear axle and putting the new ones on the other side, and finally replacing the last two tires (which are now on the steer axle).

If only two tires replaced then IT HAS TO BE THE STEER.A front blowout can be much more catastrophic than a rear tire blowout.

Replacing tires in pairs - where to start? | Good Sam Community

13 Replies

pauldub
Explorer
May 16, 2016
Find the lowest online price you can and take that with you to Discount Tires. I've done this twice so far and both times they were very willing to match the price with no hassles. I bought some tires a few weeks ago and the best price I found was from Discount Tires Direct. The local store had no issues with matching the price at $50 lower per tire. First time I bought Toyo tires from them and they just had to order them in even though it's a tire brand they don't sell.
Bobbo
Explorer III
May 16, 2016
On my car, I replace the two most worn tires, put the new ones on the rear and the old ones on the front.

On my RV, I replace all 6 at the same time. I don't replace them because they are worn, I replace them because they are old, and they are all the same age.

Here is a Michelin video showing why to put the new tires on the rear if only replacing two:

https://youtu.be/oa9hzcjdi5Q
gbopp
Explorer
May 16, 2016
I would replace the steer tires. Or, all four rear tires.
If you replace the inner duals and the older tire blows out, it puts all the weight and stress on the remaining dual. It can damage the good tire.

I think it's best to replace all tires at the same time. Then, start saving for the next set. :(

JMO

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Replacing tires in pairs - where to start?

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