Axle ratio?
#2
Registered User
Use the vin decoder on this site. It is in the menu bar at the top of the page under tools. Once you have entered your vin look under the Equipment tab. It should be the first thing listed.
#5
I did this, and the first line had 3.73 Axle Ratio with a green check mark. This must have been a special order?
#6
Registered User
#7
Yeah, I knew that. Most HD diesel pickups from all 3 makes used to have 3.73 gears. thought the new ones came standard with 3.42's. That's why I'm wondering if this is correct
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#8
Winner winner chicken dinner!
2013 and up 2500 is only 3.42, it's been a heavily discussed issue on the net. Even vin decoders and window stickers may even list 3.73/4.10 but somewhere else on the sheet it will list 3.42.
Long story short 2013+ 2500 is a 3.42 unless you regear yourself.
Long story short 2013+ 2500 is a 3.42 unless you regear yourself.
#9
Registered User
#10
Yep, 3.42's are all you can get in a 2500 Cummins. Not sure why FCA went that way. Most will use these pickups for towing, and in mountains a lower gear ratio would be better. Also if you go to bigger tires.
For a minuscule improvement in fuel mileage when running unloaded?
For a minuscule improvement in fuel mileage when running unloaded?
#11
Winner winner chicken dinner!
Yes and when you can still pull off an over 17k tow rating why not. Don't get me wrong I believe you should be able to order whatever rear you want, but I guess they figure if they can max you out with the 3.42 no need for the 3.73 or 4.10 in a 2500
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RyeThomas (06-06-2017)
#13
Registered User
Go to this web site.
Under "equipment listing" you type in you VIN#
You get a "build sheet" of how you truck came from the factory which list gear ratio.
https://www.dodge.com/webselfservice/dodge/
Under "equipment listing" you type in you VIN#
You get a "build sheet" of how you truck came from the factory which list gear ratio.
https://www.dodge.com/webselfservice/dodge/
#14
Registered User
I had a '93 dodge with 3.55 gears and now an '04 with 3.73 gears
Both trucks do/did 2000rpm at 110kmh
Tire size was the difference. slightly larger diameter tire on the '04
I'm guessing they are manipulating gear sets to hit a target RPM with a certain tire package....
Both trucks do/did 2000rpm at 110kmh
Tire size was the difference. slightly larger diameter tire on the '04
I'm guessing they are manipulating gear sets to hit a target RPM with a certain tire package....
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