Thread: 3.92 vs 3.55
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Old 06-03-2013, 10:40 AM
Deathrend Deathrend is offline
Dodge Ram Forum Senior Member
Join Date: Sep 2011
Location: Claremore, OK
Age: 30
Posts: 318
Gender: Male
Vehicle: 2015 Ram 3500 MC DRW
Trim Level: Laramie
Color: Maximum Steel
Engine: 2013-20?? 409ci (6.7L) Cummins Turbo Diesel 385hp 850lb/ft (Aisin ASC69RC Automatic)
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Deathrend will become famous soon enough

My first ram was an 08 Big Horn 4x4 Hemi with 3.92's. Second was the 2010 sport 4x2 with 3.55.

Honestly, for the years I changed, I can't see that big of a difference. The 08 Hemi was nothing like the 10, honestly my 10 pulls harder. I've put 45,000 miles on the sport, with all kinds of driving. I've never had an issue with the 3.55's. Some of the driving, I pulled a 20 ft boat on several 300-500 mile trips, never did I see it struggling or hunting for gears.

I test drove several 3.92 newer model trucks and honestly the difference to me wasn't all that noticeable. Unless you're pulling something that's getting near the max GCWR I honestly don't think you would notice.

The only time I noticed going to different gears making a noticeable changes, was jumping to 4.10's in a CTD 2500.

To this date, I've never had an issue with the gear hunting people see, the only thing I can guess is driving style differences. I drive for MPG, slow and steady. Quick jerky driving ruins mileage.
2015 Laramie 3500 Mega Cab 4x4 DRW Maximum Steel
Aisin | 4.10 | 5th/Goose Prep | Air Assist | 37,800 GCWR
2013 VW Passat SEL TDI
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