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Moser 8.8 Axles - 31 Spline 5 Lug (05-14 GT, 11-14 V6, 07-09 GT500)

Market Price $451.99 You Save 12% ($52.00)
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  • Item 73003
  • MPN# A883105

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Features & Details

  • Forged Steel Construction
  • 31 Spline
  • Hardened Bearing Seats
  • Fits 05-14 GT, 11-14 V6 & 07-09 GT500 Mustangs
Performance Upgrade. If your 2005-2014 Mustang GT, 2011-2014 Mustang V6 or 2007-2009 GT500 has anything from bolt-ons to a full forced induction setup, your stock axles aren't going to be able to transfer all that power to the pavement. A pair of Moser Engineering 31 spline axles is designed to handle your added power and let you light 'em up without worrying about weak axles.

Street and Strip. Whether your Pony stretches its legs on the street or strip, Moser's axles are guaranteed to perform when the heat is on. These premium quality forged steel axles have 31 splines to ensure all your power and torque are put straight to the pavement - where it belongs.

Built to Perform. Moser Engineering 31 Spline Forged Steel axles are made with some of the toughest, strongest, most durable materials available. These axles feature machined C-Clip grooves to fit OEM application 8.8 inch rear ends. They are non-tapered and also feature hardened bearing seats for durability and performance under high stress conditions.

Customize. Moser Axles feature the ability to be shortened and resplined if you decide to narrow your rear at a later time.

ABS. Worried about deleting your factory ABS? Well now you don’t have to with Mosers quality design you can relocate your factory ABS sensors when installing your new Moser axles!

Application. This pair of Moser Engineering 31 Spline Axles are designed for the 2005-2014 GT, 2011-2014 V6 and 2007-2009 Shelby GT500 Mustangs.

Tech Notes. For use with a 8.8" 31 spline LSD or spool. Can be used with ABS equipped vehicles (OEM adapter may be reused).

Fitment: 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Details

What's in the Box
  • (1) 31 11/16" length axle
  • (1) 32 13/16" length axle
Installation Info
Tech Specs
Will it fit my Mustang?
  • Boss 302 - 12, 13
  • V6 - 11, 12, 13, 14
  • Bullitt - 08, 09
  • GT - 05, 06, 07, 08, 09, 10, 11, 12, 13, 14
  • GT500 - 07, 08, 09

Fits 8.8" rear gears with 31 spline LSD or Spool

People Who Bought This Item Also Bought

Most Helpful Reviews


solid as a rock!

I haven't heard of many people breaking axles on the 2011+ GT's, but not many people are around the 800hp power level like i am. I decided to pull the rear before i destroyed the stock axles, and put these ...

Read More
Helpful (6)

Great Product Poor customer service

Recieved 2, 32 13/16" length axle instead of one 32 13/16" and one 31 11/16" length axle. When I called to exchange, the phone representative seemed clueless when I told him I have two axles that are the ...

Read More
Helpful (3)

Overall Rating 4.6 out of 5 stars
Read All 20 Reviews

Customer Photos (1) Submit Your Photo

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6 Questions / 7 Answers

Ask a Question

How much power will these axels actually hold? I'm in the 800hp range and 600tq range... for right now


  • The Moser 8.8 Axles are rated at 7,000 Ft/lbs per axle which can be produced with 600-700 HP under the right circumstances. So if you are at the 800hp range these may not work for your particular set up.


Helpful (0)

Where can i find these struds?


  • We offer studs for the front and rear which can be found with the links below: Front - Rear -


Helpful (0)

Will these fit my 2014 GT? I installed them and they seem like they dont fit. My car is stock with no modifications. They seem to come up about 2 inches short.


  • Without seeing what you have done it's pretty hard to answer your question. I have a 2007 GT that I have installed these same axles on with no problems. My first guess is that you have the "C" clip installed wrong.


Helpful (0)

Do bearing come with the kit?


  • No, the Moser 8.8 Axles - 31 Spline 5 Lug (05-14 GT, 11-14 V6, 07-09 GT500) does not come with anything besides the axles themselves in the box.


Helpful (0)

Studs? Do the studs come installed on axles or in package?


  • Unfortunately, these axles do not come with the wheel studs.


Helpful (0)

Will these fit v6 Mustang? I own a 2012 V6 mustang an I'm buying the 31 spin Ford racing posi unit will these axles fit? Or are they different from the V8?


  • Yes, they are the same since the V6 and the V8 of that model year have the same rear axle.


Show 1 more answer Helpful (0)

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Customer Reviews (20) Write a Review

Overall Rating 4.6

out of 5 stars

  • 5/5

    November 08, 2013

    solid as a rock!

    I haven't heard of many people breaking axles on the 2011+ GT's, but not many people are around the 800hp power level like i am. I decided to pull the rear before i destroyed the stock axles, and put these babys in, as i know they are able to take absurd amounts of power.


    Year: 2011 Submodel: GT pa

    Helpful (6)

  • 5/5

    January 04, 2016

    Great Product Poor customer service

    Recieved 2, 32 13/16" length axle instead of one 32 13/16" and one 31 11/16" length axle. When I called to exchange, the phone representative seemed clueless when I told him I have two axles that are the same length, I need the short axle. The rep summed up my issue as "you ordered the wrong parts". I was put on hold for a long time. When the rep returned he said moser didn't make axles for my car. Which is true if my car was stock. But it's not. When I informed the rep I have an 8.8 rear end he said nothing and proceeded to setup a return. After I've already told him the one axle is already installed on my car along with 3.73 and eaton LSD. I used to run a Bama tune but ran into similar issues with customer service and went to a local tuner. The shipping is great and the website is great. It just seems that when it comes to modified mustang I never speak to anyone that knows what they're talking about


    Year: 2006 Submodel: V6 NC

    Helpful (3)

  • 5/5

    February 05, 2013

    Moser 31 spline Axles

    I had these installed professionally as I also had 4:10 gears and an Eaton limited slip differential installed too. I have had no problems with these axles. But a side note: I also at a later date updated my rear brakes and the flange on these axles are thicker than OEM axles so I had to shim the brake calipers.


    Year: 2007 Submodel: GT Flint, MI

    Helpful (3)

  • 5/5

    August 31, 2015

    Better than stock axles

    Put these in when I rebuilt the 8.8. Beefier than stock with no taper towards the splines.


    Year: 2011 Submodel: GT500 Lincoln, NE

    Helpful (2)

  • 5/5

    October 13, 2013

    Great upgrade

    These axles are a great upgrade to the OEM axle. You can tell it is a quality product when looking at these and the stock axles.


    Year: 2007 Submodel: GT Houston, TX

    Helpful (2)

  • 4/5

    August 01, 2012

    Puttin' power to the pavement!

    This is an excellent product if you intend to use real power adder's like a supercharger or turbocharger to your stang' to transfer power to the wheels. Oem axles aren't rated for significant hp. I have an 07 Shelby gt I plan to supercharge and I put a set in, direct fit, good look, and stronger than stock!


    Year: 2007 Submodel: Other Clarksville, TN, USA

    Helpful (2)

  • 3/5

    February 18, 2017

    Moser axles

    You have to press your old abs rings off your old axles and press them on the moser axles since new ones are not included they did come with wheel studs though.


    Year: 2014 Submodel: GT

    Helpful (1)

  • 5/5

    January 01, 2017

    Great axles

    A must have if your doing upgrades. Installed by The ModShop in Florence,AL and I can't stress enough about the rwhp they can handle. GET THESE AXLES! MODSHOP FTW!!!


    Year: 2008 Submodel: GT

    Helpful (1)

  • 5/5

    September 14, 2016

    Miser axles

    Perfect fit and as a note they come with the studs installed.


    Year: 2007 Submodel: GT500

    Helpful (1)

  • 5/5

    June 04, 2016

    Moser axles

    Had to change out my factory axles with only 8700 miles on the clock. I spend a fair amount of time on the Road Course. The factory axles must have stretched because there was quite a bit of end play. If you are going to change out your axles this is a good time to do brakes, rotors, gears, rear end cover, gear oil what ever your budget will allow. Do not forget to change out the bearings and install new seals. Everything is now nice and tight end play is where it should be. If you are going to use these axles on a newer Mustang and are going to change out the wheel studs these axels use a larger dia. Stud. Make sure you get the correct stud dia.


    Year: 2014 Submodel: Other

    Helpful (1)

  • 5/5

    June 03, 2016

    "Plug and play"

    You can tell their far superior than the stock ones just by lifting them. My buddy has them in his ´08 GT500 which is pushing about 650rwhp and they´ve held up, so under his recommendation I bought them too. I´m pushing only 450rwhp but I have the peace of mind that they´re never gonna fail.


    Year: 2011 Submodel: V6

    Helpful (1)

  • 5/5

    March 14, 2015

    Great upgrade for a Modded Mustang

    These axels are a great upgrade to my 05 GT. I'm not pushing monster HP (400) to the rear wheels but I race have sticky tires and a manual trans so these axels give me the piece of mind that I can push my car and not worry about snapping one.


    Year: 2005 Submodel: GT Cleveland, OH

    Helpful (1)

  • 5/5

    January 16, 2015


    so glad to buy my parts from American muscle always the right parts for my car never have to mess around they always fit perfect thank you so much AM


    Year: 2005 Submodel: V6 New York

    Helpful (1)

  • 5/5

    January 04, 2015

    Good StuffIt

    Thèse Axels are doing the job . Easy install and fit perfect .


    Year: 2014 Submodel: GT Montreal, QC, Canada

    Helpful (1)

  • 5/5

    September 23, 2014

    Great axles!

    You can tell these axles were built for quality. Only complaint is I wish you could order them with the reluctor rings installed. Was a bit of a pain to remove my old ones and put on the new axles. Little bit of heat and force and they went swapped not too hard. Would definitely recommend this product!


    Year: 2014 Submodel: GT Lincoln, NE, USA

    Helpful (1)

  • 5/5

    March 21, 2014

    Great product!

    I decided to go ahead and swap out my axle shafts for my upcoming procharger! Oem shafts do not hold up to the power i am shooting for, especially when launching hard at the track. Install was quickl and easy! Great quality and fitment! A Must Have supporting mod for serious power!


    Year: 2014 Submodel: GT

    Helpful (1)

  • 5/5

    June 12, 2017

    Great axles!

    After bending a pair of stock axles at the track these axles were exactly what I needed to be able to launch my car the way it should be and the fit was perfect.


    Year: 2013 Submodel: GT

    Helpful (0)

  • 1/5

    July 20, 2016


    Received with a chunk of metal missing. The axles to me looked used the medal was pitted. Also they do not come with the studs like it shows in the picture.


    Year: 2008 Submodel: GT

    Helpful (0)

  • 5/5

    September 24, 2015


    axles were as advertized, easy install, went to track very pleased


    Year: 2007 Submodel: GT500 Westport, MA

    Helpful (0)

  • 5/5

    July 24, 2013

    Quality item from Moser

    Quality parts... survived 7500 rpm launches in my slightly modified Boss. Ive laid down 1.60 short times, 11.85 @ 115 mph on MT slicks and these things hold up. I would recommend these parts to anyone that is driving a Mustang hard. You can easily find less expensive parts, but you wont find any of higher quality or performance. Still bought an M9 nine inch from Moser as I intend to boost the Boss. Great products from a great company.


    Year: 2012 Submodel: Boss Round Rock TX

    Helpful (0)

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