Ford F-150 Ecoboost 3:55 vs. 3:73
Looking for a used (2012-2014) Ford F-150 ecoboost to pull my 27 ft Jayco 27BH, and am only finding ones with the 3:31 or 3:55 rear end. Would love to find one with a max payload package (3:73 rear e...
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I am thrilled with how well my EB w/ 3.55 pulls my travel trailer, which sounds like the same size as yours. It tows at 65 in 6th gear comfortably, up small inclines, and so on. I have a GM 5.3, so I know all about downshifting on an overpass, and the EB is leaps and bounds ahead as far as that goes.
The max payload is hard to find. Max trailer is easier (also 3.73 gears, I believe), and would be nice to have.
That said, I probably get slightly better mpg unloaded with the 3.55's as well -- I'm averaging 21 on the freeway. But let's also be realistic -- the mathematical difference between 3.55 and 3.73 is slight, so the advantages either way are going to be minor.
The max payload is hard to find. Max trailer is easier (also 3.73 gears, I believe), and would be nice to have.
That said, I probably get slightly better mpg unloaded with the 3.55's as well -- I'm averaging 21 on the freeway. But let's also be realistic -- the mathematical difference between 3.55 and 3.73 is slight, so the advantages either way are going to be minor.
