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Moser 8.8 Axles - 31 Spline 5 Lug (99-04 GT, Mach 1)

Market Price $302.99 You Save 9% ($28.00)
Our Price

$274.99

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  • Item 73002
  • MPN# A883153

In Stock Ships same business day. Choose options to add to cart

Features & Details

  • Forged Steel Construction
  • 31 Spline
  • Hardened Bearing Seats
  • Fits 99-04 GT, Bullitt & Mach 1 Mustangs
Performance Upgrade. If you're putting down lots of power and torque in your GT, Bullitt, or Mach 1, a pair of Moser Engineering 31 spline axles is a high performance upgrade that will help you put that tire-smoking power to the ground.

Street and Strip. If you have a heavily modded street or strip Pony, your stock 28 spline axles might be too weak to take the heat. These premium quality forged steel axles have 31 splines to ensure all your power and torque are transferred 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 axels!

Application. This pair of Moser Engineering 31 Spline Axles are designed for the 1999-2004 GT, Bullitt and Mach 1 Mustangs. Wheel studs are not included.

Tech Note. For use with a 8.8" 31 spline LSD or spool.

Fitment: 1999 2000 2001 2002 2003 2004 Details

What's in the Box
  • (2) 31 Spine Axles
Installation Info
Will it fit my Mustang?
  • Bullitt - 01
  • Mach 1 - 03, 04
  • GT - 99, 00, 01, 02, 03, 04

Fits 8.8" rear gears with 31 spline LSD or Spool

Most Helpful Reviews

5/5
Excellent Upgrade!!

Super easy install and a must if looking to upgrade your LSD. Definitely helped put the power to the ground where I needed it when on the track.

Helpful (1)

5/5

Fit like a glove with the new diff

These are a great "insurance" when adding more power to your mustang. I shouldn't have to worry about breaking a axle anytime soon!

Helpful (1)

Overall Rating 5 out of 5 stars
Read All 19 Reviews

Customer Photos (5) Submit Your Photo

View All 5 Photos

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11 Questions / 8 Answers

Ask a Question

Will I need a new drive shaft too? I have an auto '01 GT, and I've already bought and recieved these axles from you guys, along with 4.10 gears and trac-lok lsd. I've been looking around, reading, and am curious if these will fit and work properly with my stock shaft which currently supports the 28 spline axles. Thank you in advanced!

Zinc01GT

  • As long as your Trac-lok is 31 spline you are OK.

    AutoXRacer

    Helpful (1)

Show 2 more answers

I bought a set of these axles and was wondering what type of wheel studs came with these. Looking to do some road racing and want to make sure they are strong or should I upgrade them. Any specs on them would be appreciated. Thanks

Irocz2k3

  • The Moser 8.8 Axles do not include wheel studs, this kit is just for the axles.

    SalC7

    Helpful (1)

Any recommendations for wheel studs to use with these axles?

Dirtball

  • Your factory wheel studs as well as many aftermarket wheel studs should work perfectly fine with these axles. If you are looking for a stronger upgrade, we recommend ARP or Moroso wheel studs.

    AshleyK

    Helpful (0)

in the Q A, it is stated that this product both comes with the wheel studs installed, and also says they are not included. there is also a review that states the product came with them already pressed in... which is it AM~!?!?!?! also, where can i order these with the C clip elims /abs ring/ studs pre installed?

Alex

  • I do apologize about the mix up here. As stated in our description and our "Whats in the box" section; The Moser 8.8 Axles - 31 Spline 5 Lug do not include wheel studs.

    SalC7

    Helpful (0)

Lug Studs Do these come with lug studs installed, as shown in the photos?

dcshoun

  • Yes - these do come with the studs as shown in the photo.

    LisaS

    Helpful (0)

Relocate abs sensor? Is this a standard step in order to replace the 28 spline to a 31 spline axle? is this necessary step in other words?

SouthernMuscle

  • These Moser axles come with ABS adapters. They are designed to work with OEM reluctor rings

    AMSam

    Helpful (0)

Answer This Question

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Customer Reviews (19) Write a Review

Overall Rating 5.0

out of 5 stars




  • 5/5

    June 05, 2016

    Excellent

    Axle came in fast and ready to go. Had to press in the new abs rings but other than that were good to go.

    sergiio92

    Year: 2001 Submodel: GT

    Helpful (1)

  • 5/5

    May 07, 2016

    Moser 8.8 Axles - 31 Spline

    Awesome!!! These axles are so much thicker than the stock ones! super beefy!! nice thing is the studs come pre-installed! The only thing you have to do is move your ABS ring over, and slide them in!

    JoshR

    Year: 2000 Submodel: GT

    Helpful (1)

  • 5/5

    September 29, 2014

    Fit like a glove with the new diff

    These are a great "insurance" when adding more power to your mustang. I shouldn't have to worry about breaking a axle anytime soon!

    ForrestS

    Year: 2002 Submodel: GT

    Helpful (1)

  • 5/5

    August 01, 2011

    Excellent Upgrade!!

    Super easy install and a must if looking to upgrade your LSD. Definitely helped put the power to the ground where I needed it when on the track.

    Karen B

    Year: 2003 Submodel: GT

    Helpful (1)

  • 5/5

    May 11, 2010

    Great product!

    these are so much thicker than the wimpy stock axles! they are ready to handle some serious launches with slicks!

    Jordan S.

    Helpful (6)

  • 5/5

    March 09, 2010

    Moser 31's

    Got these with my Motive 4.30's and launched from 3k-5k on my BFG stickies more times than I can count. Best on the market!

    Matthew

    Helpful (6)

  • 5/5

    October 22, 2007

    Satisfied

    I run these in my GT and very content with the performance of the axles. They are very durable and can pretty much take any rpm you throw at them. Not to mention the pretty reasonable price. Ive been running them on slicks for about a year and have no problems at all.

    Dustin Barlow

    Helpful (7)

  • 5/5

    September 02, 2012

    Can't break em

    Got this with 11.5 wide slicks launched at 6000rpms with 360 horsepower at the flywheel haven't broken anything if you want slicks or radials and launch higher than 4000 Rpm's then all you need are these and 31 splined differential!

    Speedmister

    Year: 2003 Submodel: GT Conway, ar

    Helpful (2)

  • 5/5

    September 07, 2009

    Moser 31 sline axles

    Had these installed the other day along with 4:10 gears and 31 splne differential in my 2003 Mach 1. So now it is time for some sticky tires and let her RIP! Great AXLES!!!

    Marc P.

    Year: 2003 Submodel: Mach 1

    Helpful (4)

  • 5/5

    July 06, 2015

    Axles to trust

    With some pretty heavy launches on these, I can say that they are great. I would put them in any future car. I can really trust them, they fit great, and they have been going good so far! It was a flawless install.

    Brian

    Year: 1994 Submodel: GT

    Helpful (1)

  • 5/5

    November 06, 2014

    Excellent Product

    Just installed these along with a FRPP 31 spline differential and couldnt be happier. Great upgrade for any car that sees the track from time to time or even for a track only car. These Moser axles can handle quite a bit of abuse.

    StanS

    Year: 1999 Submodel: GT Philadelphia, PA, USA

    Helpful (1)

  • 5/5

    February 03, 2012

    the way to go.

    you cant beat the quality, and its so much stronger then the factory 28 spline why wouldn't you want to go with the 31 spline.

    AlexAM

    Year: 2001 Submodel: GT Aston, PA

    Helpful (1)

  • 5/5

    July 16, 2010

    moser axles

    Price was right. Axles seem great, Mechanic said they are some of the best! Thanks American Muscle ! Affordable. Remember to know if you need them prepped for ABS.

    Lanced333

    Helpful (3)

  • 5/5

    April 05, 2010

    Moser 31s 04GT

    I got these when I had my gears changed out. I took the high torque differential carrier out of my dads 08 GT500 when he crashed it. I needed the 31spline axles to use it. Used it with 3.73s. Great piece and went smoothly. (we sold the GT500 and bought an 09 and built it up to 650RWHP by the way)

    Dickie Ayer

    Year: 2004 Submodel: GT

    Helpful (3)

  • 5/5

    November 04, 2016

    great

    perfect fit great price, no installation issues product was perfect.

    bwaz

    Year: 2003 Submodel: GT

    Helpful (0)

  • 5/5

    August 16, 2016

    Solid Product

    Major improvement over the stock axles, the machining of these is clearly of superior quality. Great to know there are products out there that can leave you with piece of mind when putting down some serious power.

    Otxoa8

    Year: 2000 Submodel: GT

    Helpful (0)

  • 5/5

    December 22, 2012

    reliable and durable

    These axles are strong an durable. I have done some research an moser is one of the best on the market. I highly recommend this product.

    Chad1011

    Year: 2004 Submodel: GT Corrapas Cove, TX USA

    Helpful (0)

  • 5/5

    February 01, 2012

    Moser Axles

    Once again, great service with AM. These axles are so much beefier than the stock ones. Install was pretty straight foward. Thanks again AM

    01GT

    Year: 2001 Submodel: GT Texas

    Helpful (0)

  • 5/5

    October 13, 2011

    Get rid of your wimpy 28 spline axles, 31 spline is the way to go!!

    I added these when my diff was going bad. These are great with a an upgraded LSD and this help put some tires to the pavement for better track time. One of my favorite mods and worth the investment if you race.

    Karen

    Year: 2003 Submodel: GT Wayne, PA

    Helpful (0)

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