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Old 09-12-2016, 05:49 AM   #51
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Same rims. The only thing different is the height of the tire and of course the quality. Light Truck tires are the only way to go.
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Old 09-12-2016, 05:55 AM   #52
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Originally Posted by Skaggsryan View Post
Same rims. The only thing different is the height of the tire and of course the quality. Light Truck tires are the only way to go.
Check air pressure required ion tire let me know as our original blew first trip cost me 700 in az
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Old 09-12-2016, 07:00 AM   #53
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Just wondering how's is the ride on the heavier G rated tire i.e. G614 or the S637. Is it stiffer than the factory Rainiers or about the same. I am leaning towards the G614 my rims are 3750 lbs. with the metal stems and was told that tire should be ok. Although I checked my spare and it's on one of those white rims with a rubber stem, don't know if I should get that changed out. Might need a new rim.

2016 36FBTS
2016 Chev. High Country 3500HD
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Old 09-12-2016, 02:23 PM   #54
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Just wondering how's is the ride on the heavier G rated tire i.e. G614 or the S637. Is it stiffer than the factory Rainiers or about the same. I am leaning towards the G614 my rims are 3750 lbs. with the metal stems and was told that tire should be ok. Although I checked my spare and it's on one of those white rims with a rubber stem, don't know if I should get that changed out. Might need a new rim.

2016 36FBTS
2016 Chev. High Country 3500HD

Let me know what you find out if your rims are good for those tires. I was told by Tredit (where they get tires and wheels from) that my rims are good for 110psi. That's what the Good years are rated for.
You have same wheels as I do.
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Old 09-12-2016, 02:40 PM   #55
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I bought my fiver used and it had TowMax's on it. I changed them out after I got it home. I asked Tredit about the wheel rating and they said they were unsure, Jayco said 110lb was ok, another wheel company said they looked like theirs and were good for 110.

I decided to stay with the stock wheels as Tredit and the other company both said they were their wheels. No markings on the inside of the barrel when the tire was off. I put S637's on and run them @ 100psi. They ride like solid rubber tires with no compliance at all. So far I have about 12,000km on them. I check the temps with an IR gun at most stops and they are all the same and not hot, front tires on the truck are hotter.
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Old 09-12-2016, 03:14 PM   #56
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Sticker sent to me from dealer showing tire and axel info shows 7000 lb axels, ST23580R16-E tires and 16" rims rated at 80psi.


If I change to the GY or the much better Chinese tires to 85R16-G I think I will have to go to different rims.
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Old 09-12-2016, 07:50 PM   #57
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Did you get new rims as well or just new tires? My new 2015 36fbts also comes with towmax and i figured i would replace them before putting too many miles on it.

Thanks
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Greg
I not sure if you were asking me the question.

I got the 17.5" Sailun S637's which are H rated on new 17.5" wheels.
The tires are rated at 4805# each at 125 psi and the wheels are rated at 4850# each. The wheels come with 200 psi rated valve stems.
The vendor said they can be run down to 115 psi if desired.
I feel confident that this setup should more than handle the capacity, unlike the bare minimum rated tires that came on the unit.
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Old 09-14-2016, 09:47 AM   #58
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We did the same upgrade as TexasRT and couldn't be happier. It is very obvious that the Sailuns are a much heavier grade tire. You won't be sorry if you go that route.
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Old 09-14-2016, 12:06 PM   #59
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We did the same upgrade as TexasRT and couldn't be happier. It is very obvious that the Sailuns are a much heavier grade tire. You won't be sorry if you go that route.
Glad to hear you're happy with them.
Just curious, do you run the max 125 psi or did you opt to lower it?

I just got mine home from the freight company and unloaded, these things appear to be STOUT.
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Old 09-15-2016, 07:41 AM   #60
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I run them @ 120psi. The dealer told me that would be ok and NEVER run them below 115psi. I plan on bumping them up to 125psi for our trip to Fla. because we'll be "loaded" up for that trip. We are about 15,300 lbs gross normally.
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