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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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#1
Wed, December 7th, 2011, 05:07 PM
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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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2008 Screw-5.4 L Triton-3v V-8-Gryphon-Short Bed-Gotts Mod-K&N Drop in filter- Industries Big Tex Grille Guard-TruXedo Cover-Spray in bed liner- A Work in Progress 
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#2
Wed, December 7th, 2011, 07:55 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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 2024 F150 Platinum SCrew 3.5L PowerBoost FX4, Peragon Tonneau Cover, LineX Bed, 35% Window Tint on All Sides and Rear, Full Nose Paint Protection Film, Husky Mud Guards, Lasfit Floor Liners, VIOFO Dash Cam
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#3
Wed, December 7th, 2011, 08:49 PM
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Thanks Jack
Appreciate your quick response Enjoy 
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2008 Screw-5.4 L Triton-3v V-8-Gryphon-Short Bed-Gotts Mod-K&N Drop in filter- Industries Big Tex Grille Guard-TruXedo Cover-Spray in bed liner- A Work in Progress
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