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3.31 vs 3.73

21089 Views 12 Replies 10 Participants Last post by  turnoffthelights, 
JAM7
I'm debating whether to order a 148 medium roof with the 3.5 eco with the 3.31 or 3.73 limited slip rear end. Do you guys think mpg's would be affected that much with the 3.73?
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C
3.73 made sense with the 4spd transmissions in the older trucks. It's overkill with the ecoboost and 6spd IMO unless you need maximum towing capacity.
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