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Here's my question, I just bought a set of the Nitto's Terra Grapplers size 325/60/18 (33's)and I am thinking I should have went with 305/60/18 (32's) I have 4:10 gears and I'm wondering if 1 tire size is going to make a difference in preformance and gas mileage?
 

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It will probably make a little difference not a huge one though the 32s would get slightly better economy, the 5.7 should be able to handle both just fine.
 
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