That's what I was talking about. Maybe even a 265 or 275/85 17!!!

 

abc4yew, I got the 295/70R17 Toyo M/T. Just uploaded pics today, waiting for approval, but hey fit well with no rubbing. Think I'm going to add the Powerwagon flares to try and keep the debis down off the truck.

 

What's affects mileage the most.......a taller tire or a wider tire??

 

A taller tire will help

A wider tire will hurt.

What most people don't understand is the SAE name.

for example:

285 70 17
285mm across. The sidewall height should be 70% of the width, this is the aspect ratio. Last number is a 17 inch rim.

So sometimes a 295 tire will get worse fuel economy than a 285 tire (strictly talking rolling resistance) if the aspect ratios are different.

I wish the tire companies could come up with an 85 or 90 series tire for the extra height, but I think you would lose weight capacity as you get taller and taller.

 

Yesterday morning I noticed that the stock 265/70r17s where cracking on the sidewalls so had to breakdown a month early and get new tires. I looked all over for "E"s but with no luck, they all have to be special ordered. I ended up with 285/70r17 BFG All-terrain ATs. So what do you think will be the results. THey are rated a 3310 but are only "D"s. Will the milage change up/down and how about towing? The sidewalls on these are really thick.

 

Guys, D load range tires have a lower ply rating than E range tires.... D's infate to 65 psi max, E's inflate to 80 psi.... E's runover a 2" piece of road shrappnel, D's get a flat. The Carrying capacity of D's and E's vary by design... the load range is the ability to carry that load at the maximum pressure safely. I think E's have a higher duty cycle than D's...At rated weight capacity you could drive 1000 miles at 75 mph on E's and only 300 miles on D's before tire damage would occur. (example only) All that said ... I think aftermarket BFG A/T and M/T and a few others at D load range are a better tire than some oem E-range. ks

 

when we are talking about going up in sizes like a 275-85-17, or other different sizes we are still getting hit with the 17" curse

 

i had load range c (6 ply) that would shatter glass bottles and never had a flat. A good peice of steel will go through any tire

 

Closure.

A few weeks ago the dealer called and said that they have been busy and to stop in and look at the tires they had in stock.

I stopped in and walked out with 4 new michelin 265x17", mounted on new polished aluminum rims with new center caps. I was quite suprised with the rims, I would have been happy with new tires

He explained that the rims, same as I currently have, were what came on the truck from the factory and they wanted to make sure that I was satisfied. Needless to say I was.

Current tire report: I have 22K on the BFG 275 C rated and still have 80% tread. I rotated them and it seemed to stop the cupping. I compared to a friends who has 24K on E rated and I have more tread that he has.

So after I wear out both sets I will have a decision to make C or E!

 

Let me know how the Toyo 295/70/17 work for you. I had a pull with them that noone could fix. Put on the Cooper STT's in 35/12.50/17 and drive perfectly straight. Unless you tow real heavy these seem to be a better fit than any tire I've seen on our trucks without a lift. Even better than the BFG 315. I had the old Cooper St from Les Schwab called Mud Terrain SXT's. These new Coopers have a much more solid sidewall and another ply. Still a D rated but much stronger tire. I'm pretty stoked about these tires!!

 

I sure hope your decision is E! BAD idea running C rated tires on a truck that heavy. I hope you don't tow or haul anything with them...asking for trouble there.

 

Festus mentioned Toyo finally has a green "E" rated 17" Open Country M-55 tire to fit the stock alloys. Anyone know what they're charging?

 

Load range equates to "ply rating" which has no industry accepted standard. All you can really go by is the weight rating. E is supposed to equal 10 ply, but that is almost never the reality. They may in fact be 3 ply. What is a ply? Are all plys equal? No standard. Your better off going by the service description number if available (119S for example). The number gives you the weight rating.


Toyo doesn't list a M55 for a 17" rim on their website. Do they have a new size not listed yet?

 

http://www.tirerack.com/tires/Compar...t=All&x=92&y=7

 

My 315x17s BFGs are wearing good.