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2015 F250 Lariat diesel PSD with 3.31 RAR

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2015 F250 Lariat diesel PSD with 3.31 RAR

 
  #1  
Old 01-08-2016, 11:05 AM
Paulcal
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2015 F250 Lariat diesel PSD with 3.31 RAR

HI all
Looking at buying this truck but it has the 3.31 rear end. How's that gonna work towing a 9200 lb fiver dry weight well over 10k loaded. Hitch weight is 1600 lbs.
What are the limitations.
Have only experience with a 3.73 rear end

Thanks
Paul
 
  #2  
Old 01-08-2016, 11:09 AM
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Will tow it like a dream. You can get 3.31, or 3.55 gears come on the 20" wheel equipped truck IIRC
 
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Old 01-08-2016, 11:26 AM
radium
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i have same gears 2016 6.7 f 350 pulled duel axle well over ten thousand pounds did not know it was back their plus you will love mileage
 
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Old 01-08-2016, 12:45 PM
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Originally Posted by Paulcal View Post
HI all
Looking at buying this truck but it has the 3.31 rear end. How's that gonna work towing a 9200 lb fiver dry weight well over 10k loaded. Hitch weight is 1600 lbs.
What are the limitations.
Have only experience with a 3.73 rear end

Thanks
Paul
Welcome to FTE!!!!
 
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Old 01-08-2016, 01:40 PM
roadrunner01
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My '15 has 3.31 rear, I currently have 30,000 mi., trouble-free. Towing will be no issue with all of the ponies under the hood. I have a 12,000 gvw trailer that I tow, no problems as I could go 90 mph if I so desired.

I ordered my truck with the equipment I wanted, including the 3.31 rear end/18" wheels, you won't be disappointed.
 
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Old 01-08-2016, 01:51 PM
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Compared to my 2004 6.0 with 4:11 running an aggressive tow tune, the 6.7 is worlds better in power, braking and comfort. Seriously, it isn't even close.
 
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Old 01-08-2016, 04:59 PM
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I have a 2011 with that same gearing. I regularly pull over 10,000 pounds with it. I have 3:31 gears and 18 inch tires and it pulls just great. I get decent good mileage empty also.
 
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Old 01-10-2016, 04:25 PM
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Here's the link to the towing capacities of the 2015's: http://www.ford.com/resources/ford/g...tyPU_Sep30.pdf
As you can see, there's no difference in tow rating between the 3:31 and 3:55. When I spec'd-out and built/ordered my 2015 last year I chose the 3:31 with 18" wheels and couldn't be more satisfied towing my 14K 5'ver...and also the SOLO fuel economy. So bottom line is... don't be deterred by the 3:31 if the rest of the truck is to your liking! Good luck.
Joe
 
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Old 01-11-2016, 12:56 PM
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Originally Posted by suzuki0702 View Post
Will tow it like a dream. You can get 3.31, or 3.55 gears come on the 20" wheel equipped truck IIRC
I have 3.55 gears on my 18" wheels. I believe you can select it as an option on any of the SRW trucks...maybe it is required with the 20" wheels.

I think the 3.31 will be fine. This engine is very strong.
 
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Old 01-11-2016, 02:08 PM
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Originally Posted by troverman View Post
I have 3.55 gears on my 18" wheels. I believe you can select it as an option on any of the SRW trucks...maybe it is required with the 20" wheels.

I think the 3.31 will be fine. This engine is very strong.
Camper, or snow plow pkg gets you the 3:55's. mine has the camper pkg with 18" wheels with 3:55's. I agree with everyone so far, you wouldn't even know the difference. Will tow your trailer like a dream.
 
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Old 01-11-2016, 02:15 PM
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Originally Posted by 22rimfire View Post
Camper, or snow plow pkg gets you the 3:55's. mine has the camper pkg with 18" wheels with 3:55's. I agree with everyone so far, you wouldn't even know the difference. Will tow your trailer like a dream.
Very interesting, thanks for the info. Mine does have the snowplow package, as many of these New England ordered trucks have. A measly $85 gets you stiffer front springs, a higher output alternator, and apparently the 3.55 gears. Still had to pay the $390 for the locking rear end...worth every penny.
 
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Old 01-12-2016, 04:01 PM
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Not even beginning to push the limits of the truck with 3.31s.

10k lbs.... Pfft not even warming up yet.
 
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Old 01-12-2016, 05:50 PM
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my 2011 had 3.31 and 17" wheels
It pulled great and fuel mileage was better than my 14' with 3.55 and 18" wheels.
@ 80 mph tach was just at 2000 rpm
I would definitely get 3.31 gears again
 
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Old 03-16-2016, 06:08 PM
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What kind of milage empty do you guys get with the 3.31s? Also tow about the same weight as the OP and found a great deal on a similar truck. Looking to get out of my f150 and get into a 350 for payload , handling, and ease of towing my TT
 
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Old 03-16-2016, 06:29 PM
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With 4 guys and 2,000-4,000 lbs. in the bed I can consistently get 18-20 mpg, but my use is 150 highway, then 8 hrs later 150 highway. Still not bad as I'm 4wd.
 

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