255/85/r16

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Jan 30, 2006 | 09:49 PM

wycowboy

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255/85/r16

I'm getting new tires probably tomarrow I have a f-350 psd 4x4 with 4.10 grearing. I was wondering if going up in trier size form my 235/85r16 to 255/85/r 16 will halp my fule economy at all or should I just stick with stock.. Thanks much for any help .I need it soon if any of you out thre in ford land have ant good thoughs. J

Jan 31, 2006 | 09:23 AM

rebocardo

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From: Atlanta GA

> will halp my fule economy at all or should

You will not notice any difference. Though your speedo will be off, you should have it recalibrated.

Jan 31, 2006 | 12:36 PM

ATC Crazy

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From: SW VA

I wouldnt worry about recalibrating your speedo. At 60mph, it will only be off by 2.6mph. At 35mph, it will be off by 1.5mph.

My truck is off by 4-5 mph at 60mph. Which means that when my speedo says 60mph...I am actually going 64-65mph

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