3.55 Axle Ratio vs. 3.92 Axle Ratio - Page 4 - DODGE RAM FORUM - Ram Forums & Owners Club! - Ram Truck Forum
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Factory Spec: 4.7-liter V8 engine - 310 horsepower, 330 lb-ft of torque.


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  #31  
Old 05-25-2013, 07:00 PM
SI Integra SI Integra is offline
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As true as that is, when you daily drive your truck getting 9-12 mpg it is a tough reality compared to the newer much more fuel efficient breed of trucks.
All the new trucks are being built for both..fuel economy and capabilities and power.
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  #32  
Old 03-29-2015, 01:25 PM
Big Kahuna Guy Big Kahuna Guy is offline
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Aloha and greetings to everyone.

Just had my pick up shipped over to the island. We do not have one freeway here but many steep roads and driveways. I have never even hit sixth gear yet. Pretty sure I have the high geared differential (how do I tell) Thinking about having those gears changed to 4:10s. Thoughts? (just a 4x2 so should be easy.)
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  #33  
Old 06-30-2016, 03:06 PM
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I have a 2012 Express with the 5.7. My window sticker has the Limited Slip Differential noted as an added cost, but I can't find reference to the gearing?

Anyone know how to determine if I have the 3.55 or 3.92?

TIA
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  #34  
Old 07-30-2016, 06:48 AM
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Quote:
Originally Posted by Varoadking View Post
I have a 2012 Express with the 5.7. My window sticker has the Limited Slip Differential noted as an added cost, but I can't find reference to the gearing?

Anyone know how to determine if I have the 3.55 or 3.92?

TIA
Take your vin number to your local Dodge dealership,,parts department,,ask them to run the vin ,,have them print off the report.

That is how I found out I had a SSV.
2003 ram Retired police truck 4.7 with 3.55
Police package ,,all the fluid coolers quick ratio steering heavy duty suspension,,ect,,ect,,yes it goes like stink and stops on a dime.
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  #35  
Old 08-01-2016, 01:24 PM
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Quote:
Originally Posted by midnightram View Post
Well i have the 2010 3.7 v6 with the 3.92 rear and at 85 mph from miami to orlando at just before half a tank i had 228 miles on just 19 gallon fill up is that good or bad??
12mpg.
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  #36  
Old 08-01-2016, 01:57 PM
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There is a tag located on the underside of the hood at the front by the latch hook. It gives the axle gears and differential information.
Could be hidden under hood liner ( mine is missing)
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