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Old 02-17-2016, 02:56 PM   #31
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So the door jam sticker says axel 34 which when I looked it up its gearing for 3.73. So I'm assuming that is the gearing left? Or would quigley change the gearing when they did the lift, bigger tires and all that? I would guess that I will have to look at the axel itself when I see it in person this weekend. Also if it is the stock 3.73 gearing with the 4" lift and the 295 65r18 tires should that gearing be changed? What would that gearing do for driving/milage/strain on the engine?
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Old 02-17-2016, 08:42 PM   #32
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Just took a picture for all you non-believers out there. I dont have a full loaded down Sportsmobile, just a stock 2014 E350 5.4l 3.73.

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Old 02-17-2016, 08:51 PM   #33
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I dream of double digit mileage numbers. But sometimes one must sacrifice a few mpg for a bitchin ride

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Old 02-17-2016, 08:55 PM   #34
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I agree, as soon as I get more money to spend on upgrades I doubt I will see this number for long.
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Old 02-17-2016, 09:21 PM   #35
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Is your rig 4x4 or just 2wd? And what size tires are you running? Pretty good numbers considering.

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Just took a picture for all you non-believers out there. I dont have a full loaded down Sportsmobile, just a stock 2014 E350 5.4l 3.73.

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Old 02-17-2016, 09:39 PM   #36
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Its 2wd with some tiny 225s, I am about to swap to 275/65r16 so I am sure it will take a hit.
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Old 02-18-2016, 06:09 AM   #37
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14 mpg 2wd with small tires so chances are slim of getting that out of the rig I was looking at 4x4 4" lift on 295/65r18

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Its 2wd with some tiny 225s, I am about to swap to 275/65r16 so I am sure it will take a hit.
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Old 02-18-2016, 09:40 AM   #38
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I have a 2008 5.4L 4WD 285/70-17's 3.73 gearing and get about 13mpg fairly consistently......may be slightly better since my speedo reads about 7 mph slow at 65 mph.
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Old 02-18-2016, 09:49 AM   #39
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Just took a picture for all you non-believers out there. I dont have a full loaded down Sportsmobile, just a stock 2014 E350 5.4l 3.73.

I'm curious how these factory dash mpg calculators actually work. It the very old days it was a wild-ass approximation based on engine vacuum and maybe speed...........Are post OBDII-fuel injections ones accurate?
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Old 02-18-2016, 12:14 PM   #40
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That's not bad. What mph do you usually cruise at with your setup? And how does the engine handle your cruising speeds?

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I have a 2008 5.4L 4WD 285/70-17's 3.73 gearing and get about 13mpg fairly consistently......may be slightly better since my speedo reads about 7 mph slow at 65 mph.
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