Replacing my Goodyear Marathons ST 225/75R15

[Roadtech]

Originally Posted by n2916s

My GYM's have been fine as well but I am planning to change them out for the new Goodyear ST tires when they age out this Fall (3 plus years).
Probably overkill but after a debacle with four Carlisles blowing out within about 6000 miles of each other, I am not keen at changing tires on the side of the road ever again...

Wow, Carlisle was what I was looking at. Back to the drawing board...

[SeaLevel]

Originally Posted by Roadtech

Wow, Carlisle was what I was looking at. Back to the drawing board...

At this point I am planning to have the new US made Goodyear Endurance ST tires put on my trailer when we visit Jackson Center in August.

https://corporate.goodyear.com/en-US...iler_tire.html

[OTRA15]

Originally Posted by mfrez

. . . They jacked them under the axles
. . .

It is my understanding that this technique runs the risk of bending the torsion axles, and should be specifically dis-allowed in your owner's manual. Lots of tire shops do this, and it is a bad technique altogether IMO.



PS -- There are many threads/posts here on this bogus technique.

[OTRA15]

Originally Posted by franklyfrank

I have Michelin LTX/MS2/P235 R15/108T tires on our 2013 30' International.
It is a Light Truck Extra load tire. @ 50 PSI its load capacity is 2183 lbs.
They are available however most places don't stock them and have to order them in.
They are great tires been using them for three years now.
I couldn't justify spending the extra money for the 16" wheels and other bells and whistles.
I have had these tires on my trucks and never had one fail regardless how overloaded I ran them.

It is my understanding that these 15" Michelin tires are no longer stocked. Could you please check your outlet, and confirm that you could replace them if you wanted to? If you find a link to an online tire outlet, that would be appreciated.

Thanks,

Peter

[OTRA15]

Originally Posted by DKB_SATX

It's fine to jack from the axle FLANGE, but not the axle tubes themselves.

IMO the average AS owner will not know how to do this correctly, or may not have the correct equipment. Why not use the designated AS jack points, as specified in the owner's manual?

[The Colonel]

Originally Posted by tjdonahoe

I always place the jack between the tires inward and under the flange , I place a 8" x 3/8 x 3" piece of flat steel on top of jack so top of bottle jack is putting the pressure on the verticle flange and not bending the horzontial flange, the steel piece spreads the force out to a larger area, both wheels will come up.

That's what I did when I swapped out my 15gym to 16 T02 Michelins. No issues

[Mollysdad]

Originally Posted by OTRA15

It is my understanding that these 15" Michelin tires are no longer stocked. Could you please check your outlet, and confirm that you could replace them if you wanted to? If you find a link to an online tire outlet, that would be appreciated.

I just put the specifics into Google and it showed about five sellers, including WalMart at $138. It is speed rated T, and weight rated 108 which translates to 2205 pounds. Multiply by 4 and you get 8820. A classic 30 has a GVWR of 10,000, subtract about a thousand for the hitch weight and you're over the weight rating.
Something like an International signature 28 with a GVWR of 7600 is well within the specs.

I'd like to find something in 15" also, just to avoid the expense of 4/5 new rims.

[franklyfrank]

Originally Posted by Mollysdad

I just put the specifics into Google and it showed about five sellers, including WalMart at $138. It is speed rated T, and weight rated 108 which translates to 2205 pounds. Multiply by 4 and you get 8820. A classic 30 has a GVWR of 10,000, subtract about a thousand for the hitch weight and you're over the weight rating.
Something like an International signature 28 with a GVWR of 7600 is well within the specs.

I'd like to find something in 15" also, just to avoid the expense of 4/5 new rims.

I run them on our 30' International. I have never been able to load my trailer over 7,900 lbs GVWR. That is with a full tank of water and the usual stuff for our trips.
I scale my set up regularly. More often than not we are running under that weight.

[switz]

Not to rain on the 15" Michelin "P" series tire parade as I have used that model on our 2013 25FB International Serenity and now our 2015 23D International Serenity. The passenger series tires are required by the Federal law below to be derated 10% for trailer use. Thus the Michelin LTX (P) 235/75R15 XL tire sidewall rated 2,183 pounds @ 50 psi had to be de-rated to 1,985 pounds for trailer use. That lower number was more than adequate for our two different trailers.

*******************************************

49 CFR 571.110

Tire selection and rims and motor home/recreation vehicle trailer load carrying capacity information for motor vehicles with a GVWR of 4,536 kilograms (10,000 pounds) or less.

S4.2.2.1

Except as provided in S4.2.2.2, the sum of the maximum load ratings of the tires fitted to an axle shall not be less than the GAWR of the axle system as specified on the vehicle's certification label required by 49 CFR part 567. If the certification label shows more than one GAWR for the axle system, the sum shall be not less than the GAWR corresponding to the size designation of the tires fitted to the axle.

S4.2.2.2

When passenger car tires are installed on an MPV, truck, bus, or trailer, each tire's load rating is reduced by dividing it by 1.10 before determining, under S4.2.2.1, the sum of the maximum load ratings of the tires fitted to an axle.

S4.2.2.3

(a) For vehicles, except trailers with no designated seating positions, equipped with passenger car tires, the vehicle normal load on the tire shall be no greater than 94 percent of the derated load rating at the vehicle manufacturer's recommended cold inflation pressure for that tire.

(b) For vehicles, except trailers with no designated seating positions, equipped with LT tires, the vehicle normal load on the tire shall be no greater than 94 percent of the load rating at the vehicle manufacturer's recommended cold inflation pressure for that tire.