Too Heavy for E's Tires..either LRF/LRG or 17.5 tires

in central Oregon I would guess that 40 % of the guys with 245/75r16 tires have upgraded to 265/75r16 tires .
most of those are on the stock 6.5" wheels .
my friends and I have done that for a decade with no issues .

Get the GY G tires they have been VERY trouble free since 07. Don't worry about your rims run the G's at 85psi that is the lowest pressure on their inflation chart. Weigh your axles look at the chart and you will see you have a safety margin at that pressure. I did the same on our Avion Platinum E to GY G's 5 years never a problem. Several trips from Palm Springs to Phoenix at 75+ mph across I-10.

Contact GY they will help you out changing to the G's.

Goodyear makes a all steel G weight range 16" tire. I think the rating is 3710 pounds at 110 PSI cold. That is what is normally found on 7,000 pound rated axles.

What about the 17" rims found on the recent Ford pickups? How much is that tire rated at? I heard that the 18" rim is even a little higher weight rating.

17.5 is a commercial tire, and not a lot of local stores will carry that tire, so best to carry a spare. 19.5" tires are used on a lot of class 6 trucks, so most every small farming community will have at least a couple sizes of 19.5" tires on hand. 17" and 18" found in millions of F-250's and F-350's mean that local tire shops across the country now stock a few of those tires for the local population.

Ricksontruck.com does sell 17.5" dually type rims for motorhomes built on the E-450 chassis. To bad they are not building 17.5" rims for the older pre-97 F-53 chassis, I might buy some if they did. I also have a weight dis-ability on my motorhome, with it's 6,000 pound front axle and 3042 pound rated tires. I am near the capacity of that axle, and considering I drive down a road with curves, and the RV leans side to side, each tire is overloaded when it is the side being leaned on in a curve. I would much rather have 3,400 pound rated tire, even if the rim and axle is only rated at 3,000 pounds. It would give me 10% more piece of mind!

You might also check in with eTrailer.com They have advertized here for years, and also stock a replacement 7,000 and 8,000 pound trailer axle, can sell you the parts to convert most axles to disk brakes, and sell other related parts.

Fred.

Lowsuv wrote:
how about LT 265/75R 16 LRE ?
3415# sidewall rating
40 different models to choose from
Bridgestone Duravis R250 and R500 have a good following
31.4 inch diameter , same as 235/85r16

And just what rim would one buy to mount those under a trailer?

Chris

I, also, went with Sailun S637's over a year ago and have not had the first problem. I had no clearance issues on my Montana.

how about LT 265/75R 16 LRE ?
3415# sidewall rating
40 different models to choose from
Bridgestone Duravis R250 and R500 have a good following
31.4 inch diameter , same as 235/85r16

The Sailun appears to be a good tire. It is however 1" larger in diameter than the ST235/80R16E Marathon, so check clearance very carefully. Make sure you have at least 33" center to center on your axles.

Or you can lobby Goodyear for help with a G614 upgrade based on your failure rate.

Chris

fj12ryder wrote:
I replaced my ST tires with the 235-85 x 16 G-rated Sailun tires. Much cheaper than the Goodyear G-rated 614. The jury is still out on whether they last as long or work as well. Several people have many more miles and more time than I and they are reporting good results. YMMV. Literally. :)

I also Have G rated Sailun's. So far no problems. They are a very heavy duty tire that is up to the challenge and much cheaper than Goodyear

I quit commenting on Goodyear tires about 10 years ago as no one seemed to listen. I had nothing but grief out of Goodyears, 8 or so blowouts, $25,000 rig damage, etc. I went to Michelin E Ribs, which were theoretically over weighted by a hundred pounds or so, but never had another blowout/rig damage.

I am pretty sue the 17.5" tires take a wider rim than what you have currently. You will be buying new rims. The G614 or the Sailun are the only two G rated tires for your rims.

The Marathons are junk as you are discovering. Many Montana owners go to *GOOD* E rated LT tires as replacements. Yes the load carrying capacity is lower than the Marathons, but it works.