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Re: The 32.5" BFG M/T KM's & Truxxx Fit Great!!!
Here's an example off a tire sizing calculator comparing the factory rubber to the BFG size rubber now on the truck.
245/65/17 @ 60mph
255/75/17 will now be 55.20mph
Speedometer Difference: 8.537% too slow
Diameter Difference: 7.87% (larger then factory diameter)
This means you are actually going FASTER then your speedo is showing.
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Last edited by Chris03HD : 05-08-2008 at 10:57 AM.
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