Guaranteed Free Delivery by 12/24! available on most items - Details

Talk to a Mustang Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $5,000 For Your Mustang! Enter Daily
In Time For Christmas These & Many More

Spec Billet Steel Flywheel - 6 Bolt (05-10 GT)

Item 60009G05
Call a Mustang Enthusiast at 1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Market Price $348.99 You Save 11% ($39.00)
Our Price


FREE Shipping

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
In Stock

Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features & Details

    • SFI Certified
    • 6 Bolt
    • Machined to Precise Specs
    • Billet Steel
    • Fits 2005-2010 GT Mustangs
    Premium Quality. By choosing a premium quality flywheel like a SPEC Billet Steel flywheel for your Mustang GT, you'll enjoy driving it more and also have more peace of mind. SPEC flywheels are made to the highest standards for both performance and safety. These flywheels are are machined to a .001 tolerance (other brands are only made to .01) and designed and weighted for the perfect balance and surface to complement your new clutch.

    Protects Your Investment. When replacing your clutch you have two options: resurfacing your flywheel, or getting a new flywheel. Most times, getting a new flywheel is better than resurfacing, as the flywheel will dictate how well your clutch will perform, as well as how long it will last.

    Rebuildable. A cheaper flywheel won't stay that way - SPEC's steel flywheels have a replaceable steel friction plate which makes this flywheel rebuildable. And this flywheel surface is also made from a special type of steel specifically designed to help your new clutch "bed in" properly and to promote superior grip - so this might just be the last flywheel you ever have to buy.

    SFI Certified. If you're using this flywheel in high performance or racing applications, SFI Certification is critical so you can run your Pony at the track or strip. And it's great for peace of mind even in a daily driver - at higher RPMs, stock cast flywheels have been known to explode.

    Please note that SPEC part# SF46S is the same as SPEC part# SF64S.

    Fitment: 2005 2006 2007 2008 2009 2010 Details

    MPN# SF64S

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Flywheel
    Installation Info
    Tech Specs
    Flywheel Specifications
    Year/Model: 2005-2010 GT Manufacturer: SPEC
    Material: Billet Steel Bolt Pattern: 6 Bolt
    Hardware Included: None SFI Certified: Yes
    Will it fit my Mustang?

      Customer Photos (2) Submit Your Photo

      View All 2 Photos

        Questions & Answers (1)

        1 Top Rated Question

        How much does it weigh?

        • The Spec Billet Steel Flywheel weighs in it 25lbs.

        Helpful (0)
        Post Your Question

          Customer Reviews (8) Write a Review

          Overall Rating 4.8

          out of 5 stars

          Installation Time:Full Day

          Installation Cost:$250-$500

          • Performance Gain 4.571429 4.6
          • Fit 5 5

          • 4/5

            Installation Time: Afternoon

            August 07, 2017

            Beautiful Piece, Great feel, Dowel pin concerns

            This is an extremely nice piece. Clean neat well machined and provides an excellent pedal feel with no extra vibration or other odd pedal feel. The only concern is the dowel pins/pin holes. When the pins are driven in they remove a small curl of metal from each hole as the come to the surface of the face. While they are tight without any apparent issue from this. I have concerns how this will be if/when they are removed an reinstalled with the next clutch service. This is the only demerit I found. Could have been five stars without this concern.


            Year: 2008 Submodel: Bullitt

            Helpful (11)

          • 5/5

            April 08, 2016

            Spec Steel Flywheel

            Although this is the part number I ordered and received, it's not the same flywheel. Mine did not have the replaceable clutch surface plate. I called Spec to verify the pressure plate alignment dowels, as they appeared too big for the pre-drilled holes, but put the pins in the freezer and heated the holes, and with the help of a large hammer, inserted them with no problems. It would have been nice to have this info with the product.


            Year: 2007 Submodel: GT

            Helpful (9)

          • 5/5

            Installation Time: Weekend

            May 27, 2015

            Rebuildable, but good luck finding the new surface

            I LOVE American Muscle, and I ordered this flywheel back in 2012 specifically because it stated it was rebuildable. Unfortunately, nobody sells the replacement friction plate kit except SPEC. SPEC charges astronomical shipping prices. Would sure love AM to carry this! I honestly would have bought a different flywheel...lightweight over the rebuildable if I knew I would have to pay nearly as much after shipping for the new surface with SPEC. I'd go aluminum in hindsight and save the least until the new surface is available on AM!


            Year: 2005 Submodel: GT Fircrest, WA

            Helpful (13)

          • 5/5

            Installation Time: Full Day

            February 27, 2014

            not bad for replacement

            I was replacing my clutch and flywheel, and found this for cheaper than factory. So its just replacement until I can supe uo the car more. But works great so far.


            Year: 2005 Submodel: GT

            Helpful (12)

          • 5/5

            Installation Time: Afternoon

            May 18, 2013

            Great flywheel

            Works will with my setup. Putting the 600hp to the ground..


            Year: 2007 Submodel: GT Fort Mill, SC, USA

            Helpful (8)

          • 4/5

            Installation Time: Afternoon

            April 01, 2013

            More power

            Installed with spec stage 2 on my boosted 2010 gt great fitment


            Year: 2010 Submodel: GT

            Helpful (9)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $250-$500

            December 27, 2012

            Nice clutch and flywheel!

            Very responsive. Quick engangement, and precise gear changes! Parts and labor was about 1200 after a new hydraulic throwout bering. I'd say its a pretty good upgrade in conjution with other modifications


            Year: 2008 Submodel: GT Lawrenceville, GA, USA

            Helpful (8)

          • 5/5

            January 06, 2010

            SPEC steel flywheel

            Not something visable but nice looking and great quality. Along with the new SPEC 3 clutch,im sure it can handle anything we throw at it. Feels good.Thanks again AM,Great service and speedy delievery.


            Helpful (12)

          Related Mustang Categories