2013 GT500 rear diff?? - Ford Mustang Forums : Corral.net Mustang Forum
LinkBack Thread Tools Display Modes
post #1 of 3 Old 07-06-2012, 03:34 PM Thread Starter
Registered User
Trader Feedback: (8)
Join Date: Mar 2012
Location: Cecil MD
Posts: 232
2013 GT500 rear diff??

Curious if anyone knows anything about the 2013 gt500 rears.... I have a 93 GT that im going to be building a rear for, some serious HP. I want a streetable rear if possible and figured id see if the gt500 would work?

Anyone know anything about them?? Thanks

zapp109 is offline  
Sponsored Links
post #2 of 3 Old 07-06-2012, 08:54 PM
Registered User
Trader Feedback: (0)
Join Date: May 2006
Location: Houston, Tx.
Posts: 4,744
2013 GT-500 uses the same differential as the Boss Mustang. made by Torsen.
It's a geared limited slip differential like a Detroit Tru-Trac vs. a clutch pack friction system used in the GT's, but it is torque biased vs slip biased like the Tru-Trac.

Just bought one for my project. They are very expensive at $1,000, but are state-of-the-art.

Beyond that the 2013 GT-500 has a 3.31 gear and 31 spline axles.

Democracy is two wolves and a sheep sitting down and voting on whats for lunch.
r.barn is offline  
post #3 of 3 Old 07-16-2012, 08:20 PM
Founder corral.net
Christopher Ihara's Avatar
Trader Feedback: (0)
Join Date: Apr 1995
Location: Northern, VA
Posts: 1,476
Blog Entries: 5
I have used just about every differential made for the Mustang with the exception of two: the Detroit Locker, and a spool (which technically isn't a differential at all).

Here's my take:
- Ford Traction-Lok:
In GT500's after 2010 these included a set of carbon fiber clutches which when driven slowly around tight turns causes a moaning noise. These are more durable than the stock Traction-Lok's fiber-based clutches, but even the GT500 rear will suffer from eventual failure. The good thing is that these are rebuildable; however, the cost of a couple of rebuilds would pay for a better differential.

- Auburn Pro:
The Auburn Pro was used on our project race car. While it is an improvement on durability over a stock traction-lok, it's not ideal for a road race car. It managed to live for 40-hours of race time and then was done. The problem is that the Auburn Pro is NOT rebuildable. So once it goes it is gone. At over $400 for a new one, this is not a unit I'd recommend for anything other than an occasionally driven street-rod.

- Torsen T2R:
The Torsen T2R is the race version of the Torsen T2 found in the 2012+ Boss 302 and 2013+ GT500. The Torsen lasted a little longer in our race car than the Auburn Pro and the Torsen T2 is rebuildable. In the end though, the T2R failed as well. It took about 50 race hours to fail.

- Detroit Power-Trax Gold:
This is the current differential that is in the race car. So far it has about 10 hours on it but we expect it to last longer than the others because of it's locking design. Is it suitable for a street car? Honestly it's hard to say. On the track I can't feel the differential lock and unlock, but there's a lot going on in the race car and a lot of rattling and banging. So any noise that would be unacceptable in a street car would be hard to hear in the race car.

"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." - Benjamin Franklin

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Christopher Ihara is offline  
Sponsored Links


Quick Reply

Register Now

In order to be able to post messages on the Ford Mustang Forums : Corral.net Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


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
2013 gt500 9's! VORTECD GT-500 (2007-Present) 0 06-12-2012 09:15 PM
For Sale 8.8 Rear Diff Cover/Aluminuim 408-93Coupe Drivetrain Parts 4 01-16-2012 03:46 PM
For Sale New: Maximum Motorsports 8.8" IRS rear diff poly mount gnx7 Drivetrain Parts 2 09-04-2011 07:44 PM
Rear Diff for 900-1100rwhp??? aplusdetailshop General Mustang Tech 7 08-29-2011 09:56 AM
For Sale Fox 8.8 rear end with Auburn Pro diff, hardened axles, TA cover, 4.10 bluepiston Drivetrain Parts 1 11-22-2010 11:12 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