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Old 10-21-2011, 11:30 AM
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dayone dayone is offline
Dodge Ram Forum Newcomer

Join Date: Oct 2011
Location: north jersey
Age: 34
Posts: 28
Gender: Male
Vehicle: 2011 Ram 1500
Trim Level: ST Quad Cab 4X4
Color: Red
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
dayone is on a distinguished road

just so you know, the 2011 ram r/t comes stock with 4.10s so the 4.56s maybe a better option. the stock gears now are probably 3.55 unless you have the the 3.92 option which would be on the window sticker. when you increase the tire size that much you need to correct the gearing in order retain applied power and fuel economy. i have heard of gas mileage going up with larger tires when the correct gears were added. there are calculaters available online to check this.
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