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Old 05-19-2015, 01:47 PM   #1
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Load Range D tires?

Looking to replace the tires on our 03 F250. I would like to move up to a 285/75/16 instead of the 265/75/16 it came with to fill in the wheel wells a bit. The problem is a 285 in the tire brand I want is not available with white letters (which I like) in a load range E. My tire guy tells me that a 285 LR D has the same carring capasity that the 265 LR E has. All that being said, the dry hitch weight is supposed to be 1880lbs on the 5th wheel the truck will be towing, which means that each rear tire will be holding about 940lbs plus cargo. LR D tires in the brand i am wanting carry 3505lbs each. What do you think, would I be safe? Thanks, Dave
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Old 05-19-2015, 02:06 PM   #2
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So your loaded weight will be around 2700 pounds total, right? Lets call it 3000 because I like round numbers. The tires carry 3505 pounds EACH so your safe weight is 7010 pounds, more than twice your loaded weight. I think you'll be fine.
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Old 05-19-2015, 02:41 PM   #3
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I have never seen a D range tire rated the same as an E. When I bought my F350 the previous owner had install D range tires on it and they were way too spongy for towing/hauling.
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Old 05-20-2015, 06:59 AM   #4
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Your tire guy is full of manure.. find a new one that is honest and not just trying to make a sale.
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Old 05-20-2015, 09:28 AM   #5
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Originally Posted by blderman View Post
I have never seen a D range tire rated the same as an E. When I bought my F350 the previous owner had install D range tires on it and they were way too spongy for towing/hauling.
My biggest fear is belt seperation. Im looking at BFGoodrich All terrian KO (maybe the K02 which is availible in an E white letter). I've been running those tires for years, however, several years ago I had a set that every one broke a belt. I was told there was a period of time they were having issues, but the only other thing I could relate it too, was the 5th wheel. Maybe it was a tire issue, but not sure. Those were load range D, but 265s (not sure what the capasity was)

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Your tire guy is full of manure.. find a new one that is honest and not just trying to make a sale.
Looking at the TireRack website specs for those tires, a 295 LR D is 3415lbs (i cant find a 285 in a D on their site), and a 265 is the exact same in an E so I have no reason to believe he is lieing, it just doesn't seem right to me either.


I was about 90lbs off on my orignal post, but if the 285 d's truely are the same capasity as the 265 e's I should still be good? The true "Dutch" in me is really wanting to buy the origanal BFG instead of the new style KO2. I know that tire will meet my traction needs, just not 100% sure it will meet our towing needs. The KO2 is slightly differant tread pattern. Although it should meet the traction needs, it would be an E so I could be guranteed it would meet the towing needs. A set of K02 would be about $100 more.
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Old 05-20-2015, 09:43 AM   #6
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Load Range D will have a weaker sidewall.. you will get more tire "squirm" going down the highway.. and with a trailer behind you that is not a good thing. Are white letters really that important?
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Old 05-20-2015, 11:22 AM   #7
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Are white letters really that important?
Yes and no. The last set I put on were black letters and it just looks so plain. You would be surprised on how much those tiny little white letters change the appearance of the vehicle (IMO). I should just go for the new KO2 and be done with it... Its just hard to spend almost a grand for tires, and that doesn't include mounting and balancing which I do myself... $800 sounds a little better...
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Old 05-20-2015, 11:45 AM   #8
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Yes and no. The last set I put on were black letters and it just looks so plain. You would be surprised on how much those tiny little white letters change the appearance of the vehicle (IMO). I should just go for the new KO2 and be done with it... Its just hard to spend almost a grand for tires, and that doesn't include mounting and balancing which I do myself... $800 sounds a little better...

I put Cooper AT3 285/70/18E on my F150 for less than $800 out the door. And they are very good tires. I wouldn't spend the extra cash on the KO2.
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Old 05-20-2015, 12:22 PM   #9
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There is a reason they make D rated and E rated tires - because the E's can carry more weight. That's mainly due to the heavier sidewalls. I agree with the others - your tire guy just wants to make a sale. And even if they do carry the same weight, the sidewalls on the D's would be more flexible and handling would be terrible.

Stick with the tire ratings that came on your truck. The suspension is designed and tuned to them.
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Old 05-20-2015, 03:19 PM   #10
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I put Cooper AT3 285/70/18E on my F150 for less than $800 out the door. And they are very good tires. I wouldn't spend the extra cash on the KO2.
Although I haven't purchased a set of Coopers since 2000, ive never had good wear out of them. Even run at the vehicle required pressures, they wear in the center before the edges. They are a nice "round" tire, meaning they always balance out with little weight, not sure im up for premature wear as i have experaniced in the past. Ive thought about general grabber at2, which look real close, its something to think about I guess.

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Stick with the tire ratings that came on your truck. The suspension is designed and tuned to them.
That is probably the part that is making this choice so hard. Being an ASE certifed mechanic, I get it... Just really makes me wonder IF i could get away with it, but I know the truck does call for LR E 265's. I guess, the part that keeps holding me up, is the carrying capasity of the 285s and that being the size I really want.

Im really leaning towards the KO2's in the 285 E's. I just wish someone had 2 Goodyear Wrangler Silent armors laying around that were in good condition. The lack of rotation from the previous owner chewed 2 of them up, but the other 2 are 50-75% tread remain.
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