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Old 07-07-2011, 09:08 PM
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snrusnak snrusnak is offline
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Join Date: Jan 2011
Location: Orlando
Age: 27
Posts: 13,290
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Vehicle: 2010 Dodge Ram 1500
Trim Level: SLT
Color: White
Engine: 2008-20?? 287ci (4.7L) PowerTech V8 310hp 330lb/ft
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4.56 for the little 287 would be great. It's a very powerful engine for it's size, just lacks the off the line grunt. The gears would help alot. The 2nd OD with the 5-45rfe allows it too while maintaining decent mpg. I'm just afraid of the 4.56 and at 75 mph being over like 2200rpm getting bad mpg. That said, my 3 speed ford with 2.42's or something like that was at 3000rpm at 65mph... and still got about 15 or 17 mpg or something like that...300 inline six.

This may help some of you decide, notice there's a huge jump from 4.11 to 4.56, this is what has me nervous:

32.5" tires at 70mph: 3.55's - 1721rpm
3.92's - 1901rpm
4.11's - 1993rpm
4.56's - 2211rpm
All in OD (5th gear)

I wish there with like 4.20's or 4.30's or something like that.
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