6.7L Power Stroke Diesel 2011-current Ford Powerstroke 6.7 L turbo diesel engine

2011 axle ratio

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Jul 5, 2010 | 01:09 PM

#1

petei

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Tuned

Joined: Jun 2010

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2011 axle ratio

What the best axle ratio for a 2011 F350 DRW when you pull a heavy trailer?Use to be 4:10 or 3:73.the rule still apply?

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Old

Jul 5, 2010 | 02:05 PM

#2

smlford

Fleet Mechanic

Joined: Feb 2007

Posts: 1,315

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From: Mid Atlantic

Could only find data on the 2010 models but here it is...

https://www.fleet.ford.com/showroom/...erDutyConv.pdf

If you truly have a heavy load get the highest gear ratio you can...

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Old

Jul 5, 2010 | 02:20 PM

#3

petei

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Tuned

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I heard that with the new 6 speed trans.you don't need a high ratio axle.

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Old

Jul 5, 2010 | 03:34 PM

#4

JackDN

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Joined: Feb 2010

Posts: 36

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From: Grass Valley, CA

Check out this site for tow ratings for the 2011 SD....

2011 Ford Super Duty | View Towing Specifications | FordVehicles.com

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Old

Jul 6, 2010 | 09:06 AM

#5

rickatic

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Joined: Apr 2009

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2011 F350 SRW truck, 6.7 PSD with 3.55 gearing is rated at 23500 GCVW. Mine pulls the 13000 pound Big Horn like it is not even back there. The 6 speed trans takes care of the power transfer, you just drive.

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2011, 355, 67, axle, codes, diesel, f250, f350, ford, fx, gear, ratio, ratios, towing, truck

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