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Another 2011 CTD 3500 question

Ron3rd
Explorer III
Explorer III
As mentioned in another thread, my daughter picked up a nice pre-owned 2011 Ram 3500 CTD dually. How do we determine which rear end ratio it has?
2016 6.7 CTD 2500 BIG HORN MEGA CAB
2013 Forest River 3001W Windjammer
Equilizer Hitch
Honda EU2000

"I have this plan to live forever; so far my plan is working"
16 REPLIES 16

Ron3rd
Explorer III
Explorer III
reppoc12 wrote:
Ron3rd wrote:
Cummins12V98 wrote:
Ron3rd wrote:
tinner12002 wrote:
There's usually a tag on the rear axle cover that tells what the ratio is.


OK, thanks


Did not see a tag on my 11 Dually or current 15 dually.

There is a site to fill in VIN that will show window sticker.


Thanks, if anyone knows what that site is, please post it.


I did, please see the first response in this thread.


You certainly did, sorry for overlooking that. Looks like what I need. Thanks for posting.
2016 6.7 CTD 2500 BIG HORN MEGA CAB
2013 Forest River 3001W Windjammer
Equilizer Hitch
Honda EU2000

"I have this plan to live forever; so far my plan is working"

reppoc12
Explorer
Explorer
Ron3rd wrote:
Cummins12V98 wrote:
Ron3rd wrote:
tinner12002 wrote:
There's usually a tag on the rear axle cover that tells what the ratio is.


OK, thanks


Did not see a tag on my 11 Dually or current 15 dually.

There is a site to fill in VIN that will show window sticker.


Thanks, if anyone knows what that site is, please post it.


I did, please see the first response in this thread.

Cummins12V98
Explorer III
Explorer III
Ron3rd wrote:
Cummins12V98 wrote:
Ron3rd wrote:
As mentioned in another thread, my daughter picked up a nice pre-owned 2011 Ram 3500 CTD dually. How do we determine which rear end ratio it has?


Have her hit the road, what is her RPM's in 6th @ 60? If it's 1,300 it's 3.42's, if it's 1,750 it's 4.10's and somewhere in-between it's 3.73's.


Good info


I try to please! :B
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

Ron3rd
Explorer III
Explorer III
Cummins12V98 wrote:
Ron3rd wrote:
As mentioned in another thread, my daughter picked up a nice pre-owned 2011 Ram 3500 CTD dually. How do we determine which rear end ratio it has?


Have her hit the road, what is her RPM's in 6th @ 60? If it's 1,300 it's 3.42's, if it's 1,750 it's 4.10's and somewhere in-between it's 3.73's.


Good info
2016 6.7 CTD 2500 BIG HORN MEGA CAB
2013 Forest River 3001W Windjammer
Equilizer Hitch
Honda EU2000

"I have this plan to live forever; so far my plan is working"

Cummins12V98
Explorer III
Explorer III
Ron3rd wrote:
As mentioned in another thread, my daughter picked up a nice pre-owned 2011 Ram 3500 CTD dually. How do we determine which rear end ratio it has?


Have her hit the road, what is her RPM's in 6th @ 60? If it's 1,300 it's 3.42's, if it's 1,750 it's 4.10's and somewhere in-between it's 3.73's.
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

Ron3rd
Explorer III
Explorer III
Cummins12V98 wrote:
Ron3rd wrote:
tinner12002 wrote:
There's usually a tag on the rear axle cover that tells what the ratio is.


OK, thanks


Did not see a tag on my 11 Dually or current 15 dually.

There is a site to fill in VIN that will show window sticker.


Thanks, if anyone knows what that site is, please post it.
2016 6.7 CTD 2500 BIG HORN MEGA CAB
2013 Forest River 3001W Windjammer
Equilizer Hitch
Honda EU2000

"I have this plan to live forever; so far my plan is working"

Cummins12V98
Explorer III
Explorer III
Ron3rd wrote:
tinner12002 wrote:
There's usually a tag on the rear axle cover that tells what the ratio is.


OK, thanks


Did not see a tag on my 11 Dually or current 15 dually.

There is a site to fill in VIN that will show window sticker.
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

Ron3rd
Explorer III
Explorer III
tinner12002 wrote:
There's usually a tag on the rear axle cover that tells what the ratio is.


OK, thanks
2016 6.7 CTD 2500 BIG HORN MEGA CAB
2013 Forest River 3001W Windjammer
Equilizer Hitch
Honda EU2000

"I have this plan to live forever; so far my plan is working"

dfb
Explorer
Explorer
Nothing no in the glove box like the old chevies, and no rear axle tags...

garyp4951
Explorer III
Explorer III
http://dodgeforum.com/forum/vindecoder.php

tinner12002
Explorer
Explorer
There's usually a tag on the rear axle cover that tells what the ratio is.
2015 Ram 3500/DRW/Aisin/auto/Max tow/4.10s,Cummins, stock Laramie Limited--Silver
Tequila Sunrise 2012 Ultra Classic Limited
2018 Raptor 428SP

Cummins12V98
Explorer III
Explorer III
My 11 HO Dually in 5th was about 1,750 RPM's with 3.42's.
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

Wild_Card
Explorer
Explorer
donn0128 wrote:
Look in the glove compartment there should be a build sheet. Lacking that give the VIN to a Ram dealer and they will give you the build data.


You can do it on their website as well, somewhere.
2015 Ram 3500 Dually
Sundowner 2286GM Pro-Grade Toyhauler

Ron3rd
Explorer III
Explorer III
Thanks for the info.
2016 6.7 CTD 2500 BIG HORN MEGA CAB
2013 Forest River 3001W Windjammer
Equilizer Hitch
Honda EU2000

"I have this plan to live forever; so far my plan is working"