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Old 08-07-2011, 11:05 AM
LeroyJaxson's Avatar
LeroyJaxson LeroyJaxson is offline
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Join Date: Jul 2011
Location: Palm Coast
Age: 40
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Vehicle: 2011 Ram 1500
Trim Level: Express 4x2
Color: mineral grey
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
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I have found in the past that the 17" rims got way better gas milage on my last truck (2003 GMC Sierra 4.8l V8. This is my first dodge and I will never go back). The 17" rims did better for ride quality. Some of the milage and ride are gained by the reduction in rotating mass (rim/tire) and the reduced unsprung weight (any component not supported by the suspension(wheels axles brakes and suspension). The Ride will also get better with a larger more flexable side wall on the 17" tires. I say go for the lightest tire/rim combo you can find. Anything lighter than your stock 20's would be a good choice no matter what size.
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