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

Item 60009G05
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • 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 -


      Customer Reviews (8)

      Write a Review

      Ratings Summary

      4.8 out of 5 overall rating from 8 customers

      Installation Time: Full Day

      Installation Cost: $250-$500

      • August 07, 2017

        4 2008 Bullitt - MarcusS Installation Time: Afternoon

        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.

        Helpful (11)
      • April 08, 2016

        5 2007 GT - Ken

        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.

        Helpful (9)
      • May 27, 2015

        5 2005 GT - Stacie Installation Time: Weekend

        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!

        Helpful (13)
      • February 27, 2014

        5 2005 GT - jake9144 Installation Time: Full Day

        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.

        Helpful (12)
      • May 18, 2013

        5 2007 GT - solo51076 Installation Time: Afternoon

        Great flywheel

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

        Helpful (8)
      • April 01, 2013

        4 2010 GT - Orgnl1 Installation Time: Afternoon

        More power

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

        Helpful (9)
      • December 27, 2012

        5 2008 GT - slovely Installation Time: Shop Install Installation Cost: $250-$500

        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

        Helpful (8)
      • January 06, 2010

        5 - jennie

        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)

      Questions & Answers (1 answers)

      1 Top Rated Question

      How much does it weigh?

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

      Helpful (0)
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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Flywheel

      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

      • Bullitt - 08, 09
      • GT - 05, 06, 07, 08, 09, 10

      Fits Manual GT and Bullitt Mustangs with a 6 bolt main only

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