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08-22-2016, 03:07 PM
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#1
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Montana Fan
Join Date: Aug 2016
Location: Cave Creek
Posts: 124
M.O.C. #18896
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Trailer weight v tire capacity
Has anybody run accorse the problem of the gross trailer weight capacity exceeding the tire capacity at max air pressure?
According to the trailer specs published by keystoe on the High Country page max trailer wieght is 14285 (shipping weight + cargo) the tire mafg says the tires are rated for 3520 lbs each or 14080 total.
I thought it was a federal law to sell a vehicle that did not meet weight specs.
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Bob Biegel
2019 Ford F350 6.7l LB
2018 MHC 331RL
1 Wife & 2 shi tzu
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08-22-2016, 03:21 PM
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#2
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Established Member
Join Date: Jun 2016
Location: MECHANICSVILLE
Posts: 26
M.O.C. #18702
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Not all the weight is carried by the tires, your truck carries some of the weight around 20% of the trailer weight. But I think none of these heavy trailers should come with only E rated tires.
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08-22-2016, 03:27 PM
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#3
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Montana Master
Join Date: Oct 2004
Location: Salem
Posts: 7,528
M.O.C. #2283
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You need to subtract the pin weigh from the weight of trailer. What you really need to do is get rid of the ST junk tires. I've been here since 2004 and the hot topic for several years in the summer has been , I had a blowout and it did X amount of dollars damage to my camper, I wish I had replaced my Marabomb tires but I thought I could ------- and everything would be alright. How many times have we seen that? Tens maybe hundreds.
Lynwood
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08-22-2016, 03:55 PM
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#4
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,134
M.O.C. #6433
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As noted, 3,000 lbs or more is supported by the truck making the tire rating well above the weight on them. But I agree with above about the ST tires.
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Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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08-22-2016, 03:56 PM
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#5
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Montana Fan
Join Date: Aug 2013
Location: purvis
Posts: 168
M.O.C. #13723
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X2 on Lynwood's comment. Im a member of the Club.
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08-22-2016, 04:01 PM
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#6
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Montana Master
Join Date: Sep 2013
Location: Pensacola (mail forward service)
Posts: 3,198
M.O.C. #13740
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Towing your trailer with a st tire from china (exception being sailun) is equivalent to being the person clint eastwood, aka dirty harry, is pointing the big gun at when he says "are you feeling lucky...". And yes, I had two blowouts before I could get them off the trailer, which was on the same trip when another rv'r informed of what I had on the montana. John
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2012 F350 6.7 L dually, 2013 3800RE with 6 pt leveling, Sumitomo 17.5" load range h tires, Samsung 18 cu ft residential fridge, 8k Morryde I.S. with disc brakes. Full timing since 2012.
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08-22-2016, 05:23 PM
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#7
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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No ST tires for us.
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Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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08-23-2016, 02:37 AM
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#8
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Montana Master
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
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As stated pin weight is subtracted from the weight of the RV.
We hade missions on our 06 3400.We changed then out to a quality tire
We purchased the 13 big sky because it had G614's
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08-23-2016, 04:12 AM
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#9
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Montana Master
Join Date: Jan 2013
Location: Depends on temps
Posts: 1,648
M.O.C. #13157
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The tires ONLY have to match the axle ratings. Your axles are rated @ 7000lbs and the tires are 3520ea so you have 7040lb rated tires. Thus that meets the requirements.
Now, go remove the ST tries and either get a set of Goodyear G614 or Sailun S637 tires. Sell the junk ST tires on Craig's list.
Also, change the valve stems to metal ones and get a tire monitor system.
Enjoy that new trailer....
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08-23-2016, 04:06 PM
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#10
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Montana Fan
Join Date: Aug 2016
Location: Cave Creek
Posts: 124
M.O.C. #18896
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Thanks to all for the advice. Picked up the 352rl today, and just finished loading most of our stuff into the new one. I will definitely look into upgrading the tires, and plan to wax it as the temps cool off here in Arizona.
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Bob Biegel
2019 Ford F350 6.7l LB
2018 MHC 331RL
1 Wife & 2 shi tzu
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08-24-2016, 12:31 AM
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#11
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Seasoned Camper
Join Date: May 2010
Location: Livingston
Posts: 76
M.O.C. #10395
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If your new rig came with Giodyear Marathon, (Chinabombs), I would highly recommend that you upgrade your statement of , "I'll look into it...", to, "I'll order my New tires and not drive my rig until I get them installed", if you want to know why, simply ask the dozens, if not hundreds of us who have experienced these bombs blowing up, (my repair bill was $4,000)
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08-24-2016, 08:11 AM
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#12
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Montana Master
Join Date: Sep 2013
Location: Pensacola (mail forward service)
Posts: 3,198
M.O.C. #13740
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Snoopy, hope the tires hold up for you till you can replace them. If you haven't read it on the forum yet, the tires are only good for 65 mph max. After that the changing diameter of the tire at speed weakens the steel cords and then they fail with a certain flair. And the rig was delivered to where you bought it on its own tire...being towed well in excess of 65 by the delivery driver. Good luck. John
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2012 F350 6.7 L dually, 2013 3800RE with 6 pt leveling, Sumitomo 17.5" load range h tires, Samsung 18 cu ft residential fridge, 8k Morryde I.S. with disc brakes. Full timing since 2012.
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08-25-2016, 12:35 PM
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#13
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Seasoned Camper
Join Date: Jul 2016
Location: new caney
Posts: 98
M.O.C. #18819
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If you buy new tires, the sailuns are speed rated at 75 mph.
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08-25-2016, 01:30 PM
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#14
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Montana Fan
Join Date: Aug 2016
Location: Cave Creek
Posts: 124
M.O.C. #18896
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Just sent the tire distributor a email requesting speed rating and load @ pressure chart specs. Will post results when I receive them. Was told at the dealership that these tires were rated for 75mph.
Snoopy
__________________
Bob Biegel
2019 Ford F350 6.7l LB
2018 MHC 331RL
1 Wife & 2 shi tzu
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08-25-2016, 01:35 PM
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#15
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Montana Fan
Join Date: Aug 2016
Location: Cave Creek
Posts: 124
M.O.C. #18896
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According to the sticker on the side of my 352, I only have 6000 lbs axles.
Quote:
quote:Originally posted by jlb27537
The tires ONLY have to match the axle ratings. Your axles are rated @ 7000lbs and the tires are 3520ea so you have 7040lb rated tires. Thus that meets the requirements.
Now, go remove the ST tries and either get a set of Goodyear G614 or Sailun S637 tires. Sell the junk ST tires on Craig's list.
Also, change the valve stems to metal ones and get a tire monitor system.
Enjoy that new trailer....
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__________________
Bob Biegel
2019 Ford F350 6.7l LB
2018 MHC 331RL
1 Wife & 2 shi tzu
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08-25-2016, 04:31 PM
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#16
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Seasoned Camper
Join Date: Jul 2016
Location: new caney
Posts: 98
M.O.C. #18819
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You can check with simple tire on the internet. They have a chart that tells you what rating there tires are as for as speed rating and also weight capacity. My 235x85x16 load range G tires are over 4000 pound capacity at 110 psi and i believe the code for the speed rating is 129L WHICH IS 75MPH. These are ST tires but nothing like the other chinese tires sold.I doubt you will find a bad review on the internet.
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08-26-2016, 01:56 AM
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#18
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Montana Master
Join Date: Nov 2007
Location: Kville
Posts: 2,865
M.O.C. #7871
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Does it really make a difference what the speed rating is? Who's going to drag one of these things 75 mph? Certainly not me.
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08-26-2016, 05:35 AM
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#19
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,657
M.O.C. #9969
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And those that will drag them at 75 or higher could care less about the speed rating!
__________________
Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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08-26-2016, 07:57 AM
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#20
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,677
M.O.C. #12947
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What is good about having a tire rated to roll at 75 mph is knowing it can handle the heat and when going 60 to 65 mph, you aren't constantly checking for tire debris flying off your tires. With the Chinabombs, 50 mph is too fast, and it was like having the weight of the world lifted from my shoulders when we upgraded to the G614's.
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Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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