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Old 05-04-2013, 05:00 PM   #1
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Changing 295 80-22.5 to 315- 80-22.5

Wanting to purchase Michelin tire with FMCA Michelin Program. You can purchase 315-80-22.5 over 50$ less then 295-80-22.5. Contacted Spartan were we got the last set and they said they can't even buy tires at the FMCA price and suggested to use that program. Spartan would be our 1st choice but they would be over 100$ more per tire. The only problem they said would be the rear tire spacing. At this time there is a 1 inch gap at closest point. We are aware of the issue with the 8.25 rim. Numerous RVer's have said they have done with no problems. Our Accuride rims are 29644 8.25. The question is has anybody made this tire change on the rear and had no tire spacing issues? 04 Essex on Spartan K2 chassis.
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Old 05-04-2013, 05:31 PM   #2
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It's not about the money
It's about the ride
You can run the 315's at 105 instead of 115-120 depended on weight so you get a better ride
I didn't even consider putting them on the rear.
They may fit. They may also kiss which would be a bad thing.
I've noticed some provest with 315's all round. They were probably in 9" rims I suspect.
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Old 05-04-2013, 07:30 PM   #3
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I just had a set of Michelins 295/80R22.5 installed and went through FMCA and thought about the 315s and the installer talked me out of doing it, he knows tires I don't.
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Old 05-07-2013, 09:58 AM   #4
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After check with Accuride and Michelin I found out the 315-80-22.5 tires have a 13.8 spacing on the duals and they will not work with the 8.25 rim. There is only a 1 inch gap with the 295-80-22.5 on the coach right now. Will put the 315 on the front and stay with 295 in the rear.
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Old 05-07-2013, 01:53 PM   #5
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Has anyone went from the 275-80-22.5 to the 315's??
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Old 05-07-2013, 05:42 PM   #6
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Quote:
Originally Posted by tom chelbana View Post
After check with Accuride and Michelin I found out the 315-80-22.5 tires have a 13.8 spacing on the duals and they will not work with the 8.25 rim. There is only a 1 inch gap with the 295-80-22.5 on the coach right now. Will put the 315 on the front and stay with 295 in the rear.
As OP post the 1" gap on rear tires would not be good because of rubbing.
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Old 05-07-2013, 05:51 PM   #7
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Michelin makes two different RV tires in the 315 size. Yours came with xza's and the Michelin dealers want to sell you the Energy tires. I believe there is a $50 diff. Go with the ones that came on your rig. NOT the Energys.

I just replaced my two fronts on my Essex in Nov last year and Michelin FMCA invoice was $1332. $100 of it was my local taxes.
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