tire issue

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May 29, 2008 | 04:56 AM

dstone8368

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Joined: Mar 2008

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From: Sanford

tire issue

I have a 05 2 wheel drive f 150 and it came with P255/65/17. I am trying to buy LT tires for it and am wondering if anyone knows how to convert tire sizes so it doesn't mess up my speedometer. In 05 a 4WD truck came with a LT245/70/17 would this work on mine. Thanks if anyone can help the people at the tire places only seem to be able to type in vehicle type on computer and get a generic size. Also if anyone has advice on a ggod tire ie> BF Goodrich, Michelin

May 29, 2008 | 05:18 AM

FLAgtSTANG302

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Joined: May 2008

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From: middleburg florida

Y ya wanting a LT tire , my .02 LT are not the greatest, but if ya want the LT tire go with the good year brand

May 29, 2008 | 07:32 AM

SPELLY F150

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Lt Is For Heavy Duty They Ride A Lot Harder That The P Version Of The Same Tire. You Should Be Able To Get Lt255/65r17. What R U Going To Use The Truck For. Do You Want A Highway Tread Or At. I Used To Work At A Tire Shop And We Sold Tons Of Firestone Transforce Or Transforce At Tires. The Were A Really Good Tire For Those Who Wanted Lt Tires.

May 29, 2008 | 07:51 AM

YoGeorge

Logistics Pro

Joined: Jul 2006

Posts: 4,512

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From: Detroit

Look at a size chart...

Quote:

Originally Posted by dstone8368

Go to a tire mfr website, and look at the diameter of the P255/65 vs the 245/70--my guess is that they're within a percent or two in diameter and should work fine, with the 245/70 being a *bit* narrower, harder riding due to the added air pressure, and *maybe* a bit more economical in terms of gas usage (which is a good thing). It will only be 10 mm narrower (less than half an inch).

As for brands, maybe go to Tire Rack - Your performance experts for tires and wheels and do a search on both tire sizes, read their reviews on the diff tires they offer--you don't have to buy tires there, but you can educate yourself on what's available. The Internet is a wonderful thing.

George

May 29, 2008 | 01:49 PM

jr105

More Turbo

Joined: Jul 2005

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From: Groton, MA

I wouldn't worry about messing up your speedometer. Stock most of Fords trucks read 2-3mph higher than your actual speed. I just switched from 255/65/17s to 265/70/17s and now my speedometer reads almost exactly my actual speed.

May 30, 2008 | 04:41 AM

dstone8368

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From: Sanford

hey guys I appreciate the help and I will do further research before I switch

May 30, 2008 | 07:21 AM

tomclem

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x2 for 265/70/17s though wish I had 4.10 rearend. I've got 3.55s but didn't notice any difference b/n the two tire sizes except tranny seemed to be smoother, going a bit longer into the RPMs which only help the powerband a little. Got Michellin LTX M/S, looks nice.