Load range D vs. Load range E tires

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Sep 8, 2004 | 08:21 PM

#46

npccpartsman

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Joined: Dec 2003

Posts: 15,368

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From: Stuttgart, Ar

Quote:

Originally Posted by jdennen

I have the R4S II tires. I did drive it again today and it feels a little stiffer. Firestone replaced the Steeltexs on my Suburban also. I had peeled two of them in one week. This set of tires was not a problem to the point where I changed them. EX has 49,000 miles. Firestone was very good about both situations. I had put Bilsteins on already and will order a Helwig this week. Anyone have any idea who has the cheapest price delivered in FL.

I got mine from summit--162 each delivered (I replaced the stock one in the front and had NONE in the rear--04 F250 CC 6.0L)

Sep 8, 2004 | 11:59 PM

#47

jdennen

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Joined: Aug 2004

Posts: 44

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From: Florida Keys

Thanks, I have an XLT 2000. It is loaded with everything that I could put on it. I bought it on the phone from a dealer in Michigan before anyone had seen one and had it delivered in Florida. It was the first one to come to S. Florida. At first I wasn't crazy about the color (Arizona Beige) I thought that it would be lighter. I has grown on me. When I parked next to the SUB, I started laughing because it was so much bigger. When I look at it now, it seems like a normal size vehicle. I love the vehicle, except for the waddle, which is what I'm Trying to correct.

Sep 9, 2004 | 09:30 AM

#48

Bajarider

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Joined: Sep 2003

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Thanks for the info, Uncle. I found 305 Nittos, wish they made E- rated 295's.
Landyot, what size wheels are you using?
Thanks

Last edited by Bajarider; Sep 9, 2004 at 09:37 AM.

Feb 18, 2010 | 12:41 PM

#49

ROCK76

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Joined: Feb 2010

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I have a 2006 ford f250 5.4l super cab 4wd i have a 2.5" leveling kit and want to run 315/70/17 but not many choices in the E range. The tire pressure chart says 75psi up front and 80psi in rear. two q's can I run d range and if i can do i have to keep stock pressure ratings.

Feb 18, 2010 | 01:49 PM

#50

tdappleman

Fleet Mechanic

Joined: Sep 2002

Posts: 1,388

Likes: 2

From: Greensboro, NC

If you choose D range tires then you will need to pay attention to the max pressure on the tires themselves - usually D maxes at 65psi. Look at the technical specs for those tires you are considering and make sure the capacity will support the Excursion and any loads you may carry or tow.

Feb 18, 2010 | 02:19 PM

#51

jstglockem

Junior User

Joined: Apr 2004

Posts: 53

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From: Virginia

I have always had E's. I would stick with E. Those pounds make a difference in the long run.

Feb 18, 2010 | 02:35 PM

#52

Danscapes

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Joined: Feb 2010

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I have noticed that my Nitto Terra Grapplers never go flat. They are E-range tires, and I plugged a hole in one tire but it still has a slow leak but it never deflates to under 20psi. So that right there tells you the difference is in the sidewall and if your towing anything heavy or hauling heavy stuff in the bed then E's are the way to go.

Feb 18, 2010 | 03:41 PM

#53

tdappleman

Fleet Mechanic

Joined: Sep 2002

Posts: 1,388

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From: Greensboro, NC

Quote:

Originally Posted by Danscapes

Not true at all - a load range E tire will go just as flat as any other tire. If you have a leak and it stops at about 20 psi then you just happen to have a small leak which just isn't showing itself at the lower pressure. While the load range E tires can typically handle more weight it isn't always the case and will vary by tire manufacturer, size and model of tire. Also - if you are not running at the max pressure then you do not have the full weight capacity rating of the tire. Look at your sidewall and you will see something like 3415lbs at 80psi. It isn't still 3415 lbs at 55psi or any other pressure. In your model - the 265/75/16 "E" is 3415 lbs at 80psi while the 285/75/16 "D" is 3305 lbs at 65psi. Interestingly enough, the 295/75/16 "D" is also rated at 3415 lbs but at 65psi. Load Range is one consideration but isn't the only factor to look at when making a decision.