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How much height difference?


RangerDanger1&

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I have a 2003 Xl Ford Ranger longbed. I have 15’s on it at the moment. I’m trying to make it higher up so I’d like to put 31’s on it. Approximately how much of a height difference can I expect from doing this and is it a bad idea. Thank you for your help.
 


Dirtman

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1 inch
 

RangerDanger1&

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I don’t know much about tires or anything really. Is this a joke or being serious if it’s serious I’m not gonna bother with 31’s.
 
Dirtman

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Your stock tires are 29 inches. 31's are 2 inches taller... The height of the truck would rasie by half of that.

1 inch...
 

RangerDanger1&

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How come my tires are 29 inches
I don’t know how to find that stuff. Could you explain it
 
Dirtman

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It's up there.
Total Drop
It's down there.
Tire Size
Round.
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I poop in the furnace.
Your tire size is listed on the sticker on your door jam.
 
pjtoledo

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friendly F. Y. I.,, the measured size will differ from the stated/calculated/advertised size. for example, if you go out and measure a 31 inch tire it won't be exactly 31 inches. different brands of the same size will also vary.
 
pjtoledo

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RangerDanger1& said:
How come my tires are 29 inches
I don’t know how to find that stuff. Could you explain it
Click to expand...

without using charts

example size of 235/75-15
that tire is 235 mm/9.25" wide at the sidewall (not the tread width).
75 is the aspect ratio, the tire height is 75% of the width, or 176.25mm tall, 6.94".


top + bottom, 6.94" +6.94", plus wheel size +15" equals 28.88" tall overall.


that's a whopping 2.12" difference, only 1/2 of which is on the bottom that raises the vehicle about 1.06"


going to that size will have a small effect on braking and acceleration, nothing critical, just noticeable.
 
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