Good Sam Club Open Roads Forum: Fifth-Wheels: Goodyear G614 ,and Endurance Tires
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Fifth-Wheels

Open Roads Forum  >  Fifth-Wheels

 > Goodyear G614 ,and Endurance Tires

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 5  
Prev  |  Next
fj12ryder

Platte City, MO

Senior Member

Joined: 08/19/2003

View Profile



Posted: 05/19/20 12:45pm Link  |  Quote  |  Print  |  Notify Moderator

laknox wrote:

cummins2014 wrote:

Thats probably all they did with Sailun changed to an ST and upped the rating . Doubtful anything else . If I remember the ST change had something to do with importing also


That's what I was told. Sailun more-or-less just changed their former truck tire to an ST by changing the molds to say "ST" and different weights. Was to get around the much higher import tax for truck tires vs trailer tires. Otherwise, they were virtually identical.

Lyle
Well, FWIW, the original tires had "For Trailer Use Only" on the sidewall. It said LT, but looks like a caveat to me.


Howard and Peggy

"Don't Panic"

Cummins12V98

on the road

Senior Member

Joined: 06/03/2012

View Profile


Offline
Posted: 05/19/20 04:12pm Link  |  Quote  |  Print  |  Notify Moderator

And Craftsman Shop Vacs "DEVELOP 6HP"


2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

cummins2014

Utah

Senior Member

Joined: 02/20/2008

View Profile



Good Sam RV Club Member

Offline
Posted: 05/19/20 04:41pm Link  |  Quote  |  Print  |  Notify Moderator

Cummins12V98 wrote:

And Craftsman Shop Vacs "DEVELOP 6HP"


Welcome to the thread [emoticon]

azdryheat

Tucson, AZ

Senior Member

Joined: 03/02/2012

View Profile



Good Sam RV Club Member

Offline
Posted: 05/19/20 10:21pm Link  |  Quote  |  Print  |  Notify Moderator

10% over axle rating doesn't take into account the pin weight on a 5th wheel, which on my trailer is 3,500 pounds (scaled). My trailer has 3x7,000 pound axles and increasing 21,000 by 10% comes to 23,100 pounds to satisfy RVIA.

However, subtracting the pin weight, my three axles only need to carry 19,600 pounds. 19,600 equates to 3,266 pounds per tire - well within the load range of any E rated tire. BTW my GVWR is 19,000.


2013 Chevy 3500HD CC dually
2014 Voltage 3600 toy hauler
2016 RZR 900


fj12ryder

Platte City, MO

Senior Member

Joined: 08/19/2003

View Profile



Posted: 05/20/20 06:35am Link  |  Quote  |  Print  |  Notify Moderator

azdryheat wrote:

10% over axle rating doesn't take into account the pin weight on a 5th wheel, which on my trailer is 3,500 pounds (scaled). My trailer has 3x7,000 pound axles and increasing 21,000 by 10% comes to 23,100 pounds to satisfy RVIA.

However, subtracting the pin weight, my three axles only need to carry 19,600 pounds. 19,600 equates to 3,266 pounds per tire - well within the load range of any E rated tire. BTW my GVWR is 19,000.
That 3,266 lbs. assumes that all axles/wheels carry the same weight. After weighing individual wheels on my triple axle toyhauler, I discovered considerable discrepancies between wheels, to the tune of around 500 lbs. difference.

And I don't think all E-rated tires are rated to carry 3,266 lbs. E-rated LT tires, which are very popular trailer tire options, are only rated to 3,042 lbs. I believe.

cummins2014

Utah

Senior Member

Joined: 02/20/2008

View Profile



Good Sam RV Club Member

Offline
Posted: 05/20/20 08:11am Link  |  Quote  |  Print  |  Notify Moderator

azdryheat wrote:

10% over axle rating doesn't take into account the pin weight on a 5th wheel, which on my trailer is 3,500 pounds (scaled). My trailer has 3x7,000 pound axles and increasing 21,000 by 10% comes to 23,100 pounds to satisfy RVIA.

However, subtracting the pin weight, my three axles only need to carry 19,600 pounds. 19,600 equates to 3,266 pounds per tire - well within the load range of any E rated tire. BTW my GVWR is 19,000.


The way I read it, the tires have to have enough rating to handle 110% of the axle rating, nothing to do with pin weight . I have two 7K axles ,I need tires that according to RVIA need to have a rating of 7700 lbs, 3850 lbs per tire. My GVWR is 15,500 minus my pin weight of lets say 25% is 3875, so thats 11,625 on the axles or in the ideal world 2906 per tire, so in reality I need a tire that has a rating of lets say 110% of 3000 lbs or 3300 per tire . But it does not work that way .

No idea what tires you are running, but if that fifth wheel was new, pretty sure the RVIA sticker would be saying 7700 lbs, not the 7000 like previously. So your tire rating would also have to be 3850. So even back before the change ,in reality coming out of the factory your OE tires needed to be 100% of axle rating or 3500 per tire . Does not matter what pin weight is .

I am running a G rated tire on 7K axles, and I am overkill, as many do, and will continue that way.

cummins2014

Utah

Senior Member

Joined: 02/20/2008

View Profile



Good Sam RV Club Member

Offline
Posted: 05/20/20 08:21am Link  |  Quote  |  Print  |  Notify Moderator

This new to me fifth wheel I bought, had Westlake G rated tires rated for 4080, actually those tires came on the new 2020 Bighorn trailer the friend of mine bought, with 7k axles . He had recently bought new tires ,and wheels for his old fifth wheel the one I bought, he wanted to keep them, so he swapped them out. The days of 3500 -3750 lb tires are a thing of the past to cover 7K axles. Big reason we are seeing G rated tires rated for 4080 on these fifth wheels not E rated, and not Goodyear G614 or the Endurance E rated , can't cover the axle ratings

ford truck guy

Pennsylvania

Senior Member

Joined: 03/22/2008

View Profile



Good Sam RV Club Member

Offline
Posted: 05/20/20 08:25am Link  |  Quote  |  Print  |  Notify Moderator

cummins2014 wrote:

azdryheat wrote:

10% over axle rating doesn't take into account the pin weight on a 5th wheel, which on my trailer is 3,500 pounds (scaled). My trailer has 3x7,000 pound axles and increasing 21,000 by 10% comes to 23,100 pounds to satisfy RVIA.

However, subtracting the pin weight, my three axles only need to carry 19,600 pounds. 19,600 equates to 3,266 pounds per tire - well within the load range of any E rated tire. BTW my GVWR is 19,000.


The way I read it, the tires have to have enough rating to handle 110% of the axle rating, nothing to do with pin weight . I have two 7K axles ,I need tires that according to RVIA need to have a rating of 7700 lbs, 3850 lbs per tire. My GVWR is 15,500 minus my pin weight of lets say 25% is 3875, so thats 11,625 on the axles or in the ideal world 2906 per tire, so in reality I need a tire that has a rating of lets say 110% of 3000 lbs or 3300 per tire . But it does not work that way .

No idea what tires you are running, but if that fifth wheel was new, pretty sure the RVIA sticker would be saying 7700 lbs, not the 7000 like previously. So your tire rating would also have to be 3850. So even back before the change ,in reality coming out of the factory your OE tires needed to be 100% of axle rating or 3500 per tire . Does not matter what pin weight is .

I am running a G rated tire on 7K axles, and I am overkill, as many do, and will continue that way.


*** OR stop worrying about it and get a set of 17.5's if your that close to max.. with 4805# capacity

Good Old American Made GY 114's [emoticon]


Me-Her-the kids
2020 Ford F350 SD 6.7
2020 Redwood 3991RD Garnet


cummins2014

Utah

Senior Member

Joined: 02/20/2008

View Profile



Good Sam RV Club Member

Offline
Posted: 05/20/20 08:45am Link  |  Quote  |  Print  |  Notify Moderator

I am no where near max running G rated tires @ 4400 per tire , total overkill. I was just surprised at whats going on in the RV world. I am wondering if there is even a G rated tire made in the US rated for 7K axles . Many made overseas .

* This post was edited 05/20/20 04:59pm by an administrator/moderator *

cummins2014

Utah

Senior Member

Joined: 02/20/2008

View Profile



Good Sam RV Club Member

Offline
Posted: 05/20/20 10:19am Link  |  Quote  |  Print  |  Notify Moderator

We just are not going see OE tires with a rating less then 3850 on 7K axles ,that was my point. Goodyear has one tire now as you mention 255/85/16 its 33.07" tall ,maybe a fitment problem with it ,and most of these fifth wheels come 6" wide rims, the 255 requires 6.5", again they are doubtful for an OE on any new fifth wheel.

We can put the G614, and the Endurance 235/85/16 ,and the 255/85/16 , and get away with them as far as not overloading, you are not seeing many fifth wheels with GVWR over 16,500 with two 7K axles minus pin weight ,its hard pressed to get much more then 3500 on a tire, that would probably be the extreme, but thats not what requires the tire to be its 110% of axle rating ,not actual.

Those Goodyears will work, are they legal, no . Will the tire cop get you ,no. Are tire stores supposed to put on a tire that equals or exceeds the 110% of axle rating, yes they are.

* This post was edited 05/20/20 05:01pm by an administrator/moderator *

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 5  
Prev  |  Next

Open Roads Forum  >  Fifth-Wheels

 > Goodyear G614 ,and Endurance Tires
Search:   Advanced Search

Search only in Fifth-Wheels


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2021 CWI, Inc. © 2021 Good Sam Enterprises, LLC. All Rights Reserved.