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post #1 of 14 Old 08-08-2013, 06:16 PM Thread Starter
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Re Gear necessary?

I have a 4 inch lift and 35" tires. I believe the truck has 3.31 gears. I am looking at getting a 5th wheel camper somewhere between 13-15K. Do I need to have the truck re geared?
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post #2 of 14 Old 08-08-2013, 06:24 PM
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Originally Posted by thedude1980 View Post
I have a 4 inch lift and 35" tires. I believe the truck has 3.31 gears. I am looking at getting a 5th wheel camper somewhere between 13-15K. Do I need to have the truck re geared?
You should find out what gears you really have for sure

I think 3.55's would of been the better choice, but don't think you will have any issues with 3.31's and 15K.

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post #3 of 14 Old 08-08-2013, 06:26 PM
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What size were the rims on the truck stock?

2013 Lariat Eco-Boost F150 Super Crew 4x4 5K Miles. Max-Tow 3.73's, luxury package


(Sold) 2011 Lariat 6.7 F350 CCLB SRW 4X4 60K MILES
Nitto Terra Grappler 295/70/R18 on OEM's
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post #4 of 14 Old 08-08-2013, 06:29 PM Thread Starter
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Not sure on wheels I bought the truck used. I have the window sticker somewhere and 95% sure it has 3.31 gears. 20 inch wheels with 35" Hankook Dynapro ATM's on it right now.
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post #5 of 14 Old 08-08-2013, 07:06 PM
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if its got the 3:31 gears, it may pull it, but you are not going to be impressed with the fuel mileage.
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post #6 of 14 Old 08-08-2013, 10:00 PM
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I tow fairly heavy almost daily and can tell you that a lower gear (3.73 or so) will always be nicer to drive even at the expense of a little lower fuel mileage. Just something to think about if you're going to be towing that 5th wheel a lot.
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post #7 of 14 Old 08-08-2013, 10:03 PM Thread Starter
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Won't be a lot maybe 10-15 trips a year. I would have gotten a 3.53 or 3.73 if I was buying new. Just not sure if the cost would be worth it to change it now. I'm not even sure how much it would cost.
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post #8 of 14 Old 08-09-2013, 05:56 AM
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I have towed my 13.5K 5'er over six thousand miles using my 3:31 rear end. I get average of 12.3 MPG on the lie-o-meter while towing. Plenty of power, now issues at all. I do have 18" wheels though.

One thing to remember is with that lift, your hitch will need to be adjusted for clearance.

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post #9 of 14 Old 08-09-2013, 06:12 AM
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I'm looking for 3.31 gears if you do rear gear.
Thanks,
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post #10 of 14 Old 08-09-2013, 10:13 AM
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I wish Ford would have offered a 3:73 for the SRW from the factory. Seems like it should have been 3:55 or 3:73 option instead of the 3:31.
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