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2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs

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Old Wed, December 7th, 2011, 03:07 PM
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Default A Tire Squish% question

OK Here's the deal I went from
P-255-70r-17
to
LT-265-70R-17 C--rated

The tires I got aren't made any more (couldn't pass on the price).
So how does 1 figure the Tire Squish%?
I can use the Tire Calculator but no idea of what to use for the Tire Squish% option.

Thanks for helping in advance.
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Old Wed, December 7th, 2011, 05:55 PM
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With no weight on the tires, they would have a diameter of 31.6" (802 mm) and a circumference of 2521mm. Normally, squish reduces any of those figures by about 3% (multiply by 0.97).

So, I'd start with a diameter of 30.7" or a circumference of 2445mm.

- Jack
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Old Wed, December 7th, 2011, 06:49 PM
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Thanks Jack

Appreciate your quick response

Enjoy
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