2013 Dodge SXT rear end ratio - Dodge Challenger Forum: Challenger & SRT8 Forums
Dodge Challenger SE/SXT Specific This area is for discussion specific to the Dodge Challenger SE/SXT model.

Reply
 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 11-13-2012, 03:11 PM
Senior Member
 
STINGRAY's Avatar
 
Join Date: Jul 2012
Posts: 1,021
Thanks: 59
Thanked 24 Times in 20 Posts
Garage
Feedback Score: 0 reviews
(Thread Starter)
Question 2013 Dodge SXT rear end ratio

Which ratio would you get and why? The 3.06 or the standard 2.56 rear end?
STINGRAY is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 11-16-2012, 06:54 AM
Senior Member
 
shootdownthestars's Avatar
 
Join Date: May 2011
Location: ON, Canada
Posts: 1,497
Thanks: 66
Thanked 91 Times in 67 Posts
Feedback Score: 0 reviews
I have 3.06 on my 2011 so I guess I'm a little biased. It was already on the car otherwise I would not have added it BUT I am glad it's there now...

I haven't driven one without it so I can't compare.. but others have said it's a significant difference..


Sent from my iPhone using AutoGuide.com App

Last edited by shootdownthestars; 11-16-2012 at 06:55 AM.
shootdownthestars is offline  
#3 (permalink) Old 11-16-2012, 11:31 AM
Senior Member
 
Join Date: Feb 2012
Location: Santa Fe, TX
Posts: 249
Thanks: 2
Thanked 7 Times in 7 Posts
Feedback Score: 0 reviews
Are you looking for performance or gas saving, I have the standard and it does fine for me, I hate to be at high Rpm just cruising as this is my daily driver


Sent from my iPhone using AutoGuide.com Free App

I absolutely LOVE this site with all my heart
Redstorm3265 is offline  
#4 (permalink) Old 11-16-2012, 12:31 PM
Senior Member
 
Join Date: Sep 2012
Location: Long Island
Posts: 103
Thanks: 7
Thanked 3 Times in 3 Posts
Feedback Score: 0 reviews
I have 3.06's for now. They do good,if your looking for that extra pick up
b1ackjack is offline  
#5 (permalink) Old 11-17-2012, 03:40 PM
Lifetime Premium Member
 
Dreamco's Avatar
 
Join Date: Sep 2011
Location: San Jacinto, CA
Posts: 781
Thanks: 2
Thanked 22 Times in 17 Posts
Feedback Score: 0 reviews
Go with the 3.06's. My 2011 is the higher 2.65 gearing. Way too high. I wish I would have gotten the 3.06's. Don't even consider anything else. The cruising RPM will not be that much different and you will drop about a 1/2 second in your 0 to 60 times. In my opinion the 3.06's should be the highest gearing you can get with the 3.6l engine. I don't know what they were thinking!

space


2011 SE Rallye, Bright White, 26G Pkg, SRT8 Type Spoiler, K&N drop-in, DRL's, Stealth Splash Guards, 20" Forged Mopar Heritage Classic's, Eibach Pro-Kit Springs, Modern Muscle Ported Intake Manifold & Throttle Body, 20% Tint, Front License Plate Bracket Delete


Last edited by Dreamco; 11-17-2012 at 05:34 PM.
Dreamco is offline  
#6 (permalink) Old 11-18-2012, 12:06 PM
Junior Member
 
Join Date: Nov 2012
Location: USA
Posts: 20
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
This is going to be a dumb question, but I am new to muscle cars. Does anyone care to explain what is meant by the 2.65 vs 3.06? How do you know what you have, and how would you go about changing it if you wanted?
crrowley12 is offline  
#7 (permalink) Old 11-18-2012, 03:09 PM
Super Moderator
 
Hal H's Avatar
 
Join Date: Aug 2008
Location: Portland, OR
Posts: 7,813
Thanks: 1
Thanked 1,114 Times in 767 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by crrowley12 View Post
This is going to be a dumb question, but I am new to muscle cars. Does anyone care to explain what is meant by the 2.65 vs 3.06? How do you know what you have, and how would you go about changing it if you wanted?
It refers to the gearing in the final drive (differential).

For each 2.65 rotations in the driveshaft there's 1 rotation at the wheel.

A 3.06 would increase the gearing ~ 15.5%. This would give some faster acceleration rate, with some decrease in fuel economy.

It would be similar to going from 5th gear (.83:1) to 4th gear (1:1) with the 5 speed automatic.

Or being on a 10-speed bike - lower gears allow you to climb hills and grades with less effort expended. At downhill or level conditions, you shift up to to higher (numerically lower gear).

Its not cheap to change ring and pinion gears after the fact, as there are clearances (lash and pre-load) that must be set precisely to avoid gear noise and wear. Plus the cost of the near R&P gear sets.

The $100 option from the factory is about the starting price for a R&P set alonge would run (probably more like $175-185), then the labor to have a driveline shop set up the new R&P gears...

Another way is to swap the center section (aka 'pumpkin') if a good used one can be found and its a bolt-in operation. Not sure if the 215mm (3.06) uses different axles/half-shaft from the 198mm (2.65) unit or not...

Most of the V8 automatic cars (300, Magnum, Chargers) may have the 215mm 3.06 rear ends, but there were a few out there with the other 198mm with the 2.65, 2.54 gearing. There's likely the ID label on these units that indicate the gearing they're equipped with.

2009 R/T 27J pkg (6 speed MT) ordered 7/17/08, built 10/23/08, home on 11/13/08

Eibach Sportline Suspension
Hotchkis Sway Bars
Nitto 555 Extreme 265/50-18"
392 Cam / DS CMR tune
Hurst /G&K modded short-throw shifter
Black gauge faces, lighted needles
Hal H is offline  
#8 (permalink) Old 11-18-2012, 03:19 PM
Junior Member
 
Join Date: Nov 2012
Location: USA
Posts: 20
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Wow, thank you for the information. Always nice to have someone clear those things up.
crrowley12 is offline  
#9 (permalink) Old 11-19-2012, 08:01 PM
Banned
 
Join Date: Apr 2012
Posts: 53
Thanks: 3
Thanked 2 Times in 1 Post
Feedback Score: 0 reviews
the 11's on up base v6 cars now use the new 200mm rear end with the 2:65 not the 198mm, dont know if any other lower gears are available for the 200mm
_WarHawk_ is offline  
#10 (permalink) Old 11-20-2012, 09:53 AM
2LZ
Senior Member
 
Join Date: Sep 2011
Location: Volcano, Ca.
Posts: 515
Thanks: 0
Thanked 21 Times in 17 Posts
Feedback Score: 0 reviews
As opposed to many (most?) here, I purposely got the 2.65 over the 3.06 and both were available on the lot. I knew I'd be doing a lot of distance everyday and wanted the V6/2.65 combo. I felt for my driving needs, I wanted it as 'leggy' as possible and I'm glad I did. The car really gets on it after 60 mph, for a V6 and I like the 1500+ r's at open road cruise.....smooth and quiet.....and I'm averaging 28+ mpg, each tankful. (unless Mrs 2LZ does some time behind the wheel!)

Even with the tall rear-end on the tight, steep mountain roads I navigate, the auto-stick does the trick on that. Let's you really pick and choose your RPM's without having to bury your foot.

I could see if I was going to be doing mostly city or 'burb driving, the 3.06 would add a bit of off-the-line spunk.
2LZ is offline  
Sponsored Links
Advertisement
 
Reply

  Dodge Challenger Forum: Challenger & SRT8 Forums > Model Specific Discussion > Dodge Challenger SE/SXT Specific

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Dodge Challenger Forum: Challenger & SRT8 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
2012 5th Annual LX & Beyond Nationals (OH) July 21-22 Turbobuckeye Mid-West 29 07-23-2012 06:50 PM
new pic of SRT-8 rear end in all it's glory Westcoast R/T General Challenger Discussion 5 02-08-2008 09:11 AM
All-New 2008 Dodge Challenger SRT8® Rambit General Challenger Discussion 0 02-06-2008 08:12 PM
2006 Detroit Auto Show: Dodge Challenger Full Release JayC Dodge Challenger News 0 01-08-2006 01:07 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome