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Old 07-30-2013, 04:23 PM   #1
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Over inflated tv tires

I have an 06 f250 fx 4x4. I got new tires put on almost a year ago and just realized they are not the same as was originally on it. The tire store told me they were the same, I took their word for it. The new tires have been inflated to 75 lbs since buying them last september and I just read the sidewall, says 44 max. Also these are P265/70r17, where my old original tires were LT 265/70r17 and had 80 lbs max on the sidewall. The truck door sticker says 75 lbs, but that's for LT tires. These sort of new tires have a max load of 2500 lbs. each. GVWR of the truck is 9200, so I'm ok there. Occasionally I've put 2000 lbs of gravel in the bed but not since I got these tires, would that be pushing it? Rear GAWR is 6000, the curb weight of this truck according to NADA is 6000 something. I don't know actual curb weight of rear axle. Total max load of truck is 3000.

Have I damaged these tires? I've put about 5000 miles on them at the 75 lb pressure. And would I have a problem if I now change the pressure to the 44max? I kind of feel duped by the tire store, and it took 3 visits to get the tires and wheels balanced right. Upon looking at the receipt, I got what I paid for.

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Old 07-30-2013, 04:35 PM   #2
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Not sure what you are towing with the "P" rated tires on the 3/4 ton truck but I am pretty sure since you got what you paid for... You'll be wanting to start saving for the LT's.

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Old 07-30-2013, 04:37 PM   #3
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The tire dealership should be ashamed of themselves putting passenger tires on a F250 thinking that would be okay...probably too late to do anything about it though.


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Old 07-30-2013, 06:18 PM   #4
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To top it off, the tire store is affiliated with the ford dealership, one of those Quick Lane stores. I have my truck going in to the dealership for tranny fluid change this week, and am gonna try talking to the service mgr about the tires.
Anyone know if I'll have problems changing the pressure to the 44 psi?

I got what I paid for, just not what I asked for, I guess I shoulda checked them better when I bought them. They are supposed to be an extension of the dealership, and I trust the dealer to do work on my vehicles. The company I work for is their preferred body shop, and we buy a lot of parts from them.
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Old 07-30-2013, 06:37 PM   #5
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You were certainly taken advantage of, for sure.
I believe I would never go back there again and make sure none of my friends did either.

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Old 07-30-2013, 06:58 PM   #6
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Maybe you can just buy 2 lt tires for the rear and run the p tires on the front.
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Old 07-30-2013, 07:19 PM   #7
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Originally Posted by kc8lvy View Post
Maybe you can just buy 2 lt tires for the rear and run the p tires on the front.
You can not mix tire sizes or types. It is against DOT regulations in Ontario where I live. Professional tire dealers wont even install only 2 snow tires any longer due to safety concerns as well.

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Old 07-30-2013, 07:43 PM   #8
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running at an over-inflated pressure will have had an effect - potentially damaging the belts / carcass of the tire.
Note that the load rating for the P265/70r17 is a lot less than your RAWR by approx 1200lbs per
this is the equivalent of taking the tire's load capacity branded on its sidewall and multiplying it by 91%. For example, a Euro- or P-metric tire designated to carry 2,000 pounds on a car is restricted to carrying 1,820 pounds when used on a van, pickup truck or SUV
With a 4x4 you will not want to mix and match per -
Tire diameter variations can be caused by accidentally using different sized tires, tires with different tread designs, tires made by different manufacturers, different inflation pressures or even tires worn to different tread depths
IMHO I would be letting the dealership & anyone who asks about the lack of knowledge this tire shop has and certainly would not send any of my money or that of friends or associates their way
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Old 07-30-2013, 07:50 PM   #9
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About the only good thing you have going for you in this abomination of a story is the gas motor. A PSD would have added more weight. The manager of the place who put those tires on should get kicked in his balls.
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Old 07-30-2013, 08:00 PM   #10
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Thanks for that info sgt. Yes I plan to let the service mgr have an ear full, and if that dont get me anywhere, also the sales mgr since the company I work for has bought 7 trucks from them in the past four years. I think they should reimburse me the cost of these tires, I don't mind paying more for the LTs that are supposed to be on my truck. I would think these tires can be dangerous being over inflated by that much for almost a year.

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