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09-14-2011, 09:22 PM
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#1 |
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Registered User
Join Date: Mar 2011
Location: Gainesville, Fl
Posts: 178
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Tire size help (BRAIN FART)
Need some help with tire size , Im taking the 10 inch wheels off the front and putting 8s in its place the tires on it now are 265/50/ 15 and for the life of me I cant remember the calculation I want to keep the same profile
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Scott 82 step side aka " Bouncy " 73 GMC Long bed Vortec 5.7 |
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09-14-2011, 09:42 PM
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#2 |
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Senior Member
 
Join Date: Nov 2003
Location: Brookings, SD
Posts: 10,499
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Re: Tire size help (BRAIN FART)
The height is found by taking the middle number as a percentage of the first number. I explained it really bad. Basically with your number the height is 132.5, so 50% of 265.
If your new tire is 235 wide you would want a 235/55/15 which would give you a height of 129.5 (55% of 235).
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Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs. |
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09-14-2011, 10:00 PM
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#3 |
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Registered User
Join Date: Mar 2011
Location: Gainesville, Fl
Posts: 178
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Re: Tire size help (BRAIN FART)
thats what I was thinking but something told me nope
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Scott 82 step side aka " Bouncy " 73 GMC Long bed Vortec 5.7 |
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09-14-2011, 10:16 PM
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#4 |
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67-72 parts collector,…
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,717
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Re: Tire size help (BRAIN FART)
Try using this:
http://www.tacomaworld.com/forum/tirecalc.php
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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09-15-2011, 12:24 PM
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#5 |
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Registered User
Join Date: Feb 2011
Location: Vacaville, CA
Posts: 34
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Re: Tire size help (BRAIN FART)
Take the tire width, times that by the aspect ratio as a decimal, times by 2, divide by 25.4 to switch mm to inches, then add the wheel size...
Here's what u have... 265 x .50 x 2 ÷ 25.4 + 15 = 25.43" Posted via Mobile Device |
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09-15-2011, 04:55 PM
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#6 |
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Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
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Re: Tire size help (BRAIN FART)
Do you want to make it easy????
Use this calculator http://www.discounttiredirect.com/di...foTireMath.jsp
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Frank |
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