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Old 05-18-2013, 03:23 PM
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GTyankee GTyankee is offline
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Join Date: Dec 2009
Location: San Diego East County, Ca
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Vehicle: 2009 Dodge Ram 1500 2X4
Trim Level: quad cab SLT
Color: sunburst orange pearl
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How can you compare apples to oranges ?

forgetting about the engine, V-6 or HEMI
just stick with the 8 speed transmission

with the 3 different differential ratios
3.21 has the lowest torque, but gets the best MPG, at any given speed the RPM will be the lowest of the 3
3.55 has mid range torque, MPG is not quite as good
3.92 has the most torque, but you lose a bit more MPG

torque is needed for pulling power & quicker take offs
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Ram 1500 SLT Quad cab, 5.7 HEMI(R) MDS VCT, 5 speed auto 545RFE, 3.55 differential gears, 18" Magnaflow muffler, EGR bug deflector, Bushwacker fender flares, customized Nfab nerf bars, CB radio, Autonet wi-fi router, custom soft tonneau cover, Line_X bedliner, DEBO Step, build date 10/15/08 a Wednesday built vehicle
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