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  1. 6.0L Performance Parts Discussion
    I have a 2005 6.0L crew cab short bed and I recently added larger rims and tires. The truck got real sluggish and my MPG is at 10. I'm assuming the fix will need to come via gears, if the stock gears on my truck are 3.73's my guess would be to add 4.10's for the new set up. The new tires I'm...
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