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McLeod Aluminum Flywheel; 8 Bolt (96-04 Cobra, Mach 1; 99-Mid 01 GT; 11-14 GT, BOSS 302)

Item 62629
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      Review & Installation Video

      Hey everyone, I'm Justin with, and this is gonna be my detailed overview of the McLeod aluminum flywheel which does fit a wide variety of applications including your '96 to '04 Cobra and Mach I, the '99 to mid-2001 GT, and then finally all 2011 through 2014 Boss and GT Mustangs. So this detailed overview is gonna cover my thoughts on making the switch to an aluminum flywheel from McLeod, what some of the benefits are gonna be, and then finally we'll cover some of the bigger points of the installation process. And probably no surprise to anybody watching out there, the transmission will need to be dropped. And while that's not the hardest job in the world, it is a little difficult depending on your tool and lift situation. So I'm gonna knock it up to a soft three outta three wrenches on the difficulty scale with some more detail later on.So the aluminum flywheel from McLeod is gonna be a big time upgrade for the 4.6 and 5 liter owners out there who are still rocking that heavy factory flywheel or maybe a different steel aftermarket flywheel and wanna shed a nice chunk of weight from the rotating mass, help the car pull through the gears a little bit quicker, and maybe help the car just feel a little bit more responsive overall. Your only slight drawback when making the change to an aluminum flywheel like this might be a minor hit to your overall driveability in addition to the possibility of some chatter depending on what clutch you end up going with. That leads me to my next point. You can use whatever clutch you essentially want to here with the aluminum flywheel from McLeod, but it's been my experience in the past that sticking with the same manufacturers for both the flywheel and clutch typically gets you the best results.Now the argument between using a heavier steel flywheel and a lighter aluminum or chromoly flywheel is not exactly a new one, it's been around a long time, but the general rule of thumb to keep in mind is here, the heavier flywheel is gonna be beneficial in two big ways. First and foremost, it's gonna be great to get a big heavy car moving off the line thanks to inertia. In addition to that, it's also gonna make the car just feel a little easier to drive in stop-and-go type situations. Other than that, the lightweight flywheels are gonna shine basically everywhere else. I'm a big fan in removing rotational mass. I think it's nothing but a plus, and by switching to the aluminum option here from McLeod, you certainly are gonna be doing that. Let's get a little further into the construction and materials here with the McLeod option. Again, this is their aluminum version, CNC machined, 6061 T6 aluminum to be exact. Now this is just one of a few different options from McLeod for your flywheel needs. They do have a nodular iron version. They have a lightweight steel version that will be slightly less weight compared to your factory flywheel. We then have the aluminum version that we have in this video. And then last but not least, we have the chromoly steel version which will be the lightest of the bunch. Now all of these different flywheels of course have their own benefits and they will all vary in price slightly. Now McLeod actually recommends using this particular flywheel with both supercharged and turbocharged applications, or in their words, any car that sees rapid RPM levels, which honestly, let's be frank here, this could mean anybody, blown, boosted, naturally aspirated, it doesn't really matter. This thing is also SFI certified which is huge, because if you're serious about competing with your car, this certification is required in a lot of different sanctioned bodies of racing or different racing organizations. Other important things to point out include a ring gear featuring 164 teeth. The McLeod flywheel has also been zero balanced which means there's no need for any external weights or counterbalancing. And last but not least, it has been designed to fit the eight bolt m

      Product Information

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


      • Aluminum Construction
      • 8 Bolt Pattern
      • 164 - Tooth
      • 0 oz Balance
      • SFI Certified
      • Fits 1999-Mid 2001 GT, 1996-2004 Cobra, 2003-2004 Mach 1, 2011-2014 GT, 2012-2013 Boss 302


      Peace of Mind. When replacing or upgrading your Mustang's clutch you have two options, resurfacing your old stock flywheel, or getting a brand new flywheel. A new flywheel is a much better choice than resurfacing, as it will dictate how well your new clutch will perform, as well as how long it will last.

      Aluminum Construction. Manufactured from aluminum for light weight, this McLeod Flywheel features a ring gear of 164 teeth, an engine balance of 0 oz, and a eight bolt main pattern. Aluminum flywheels are perfect for force inducted applications where rapid RPM levels are desired.

      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.

      This McLeod Flywheel fits the 1999-Mid 2001 GT, 1996-2004 Cobra, 2003-2004 Mach 1, 2011-2014 GT and 2012-2013 Boss 302 Mustangs with an eight bolt main. This is the perfect companion to your new McLeod Clutch.

      Technical Note.
      This McLeod flywheel has an 8 bolt main that is found in the 1999-mid 01 Mustang GT's with production date ending on 06/01, 1996-2004 Mustang Cobra's, 2003-2004 Mach 1's, 2011-2014 GT's and 2012-2013 Boss 302.

      Please Note. Romeo built engines have 6 bolt cranks and Windsor built engines have 8 bolt cranks. If the 8th character in the VIN is an "X" its a Windsor block, if the 8th character in the VIN is a "W" it is a Romeo block. There is an exception to that rule as the 2001 Bullitt Edition Mustang feature a Romeo built engine. If unsure please check with your Ford dealer to determine if you have a 6 or an 8 bolt main.

      Fitment: 1996 1997 1998 1999 2000 2001 2003 2004 2011 2012 2013 2014

      MPN# 563408

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (16)

      Write a Review

      Ratings Summary

      4.7 out of 5 overall rating from 16 customers

      Installation Time: Full Day

      Installation Cost: $250-$500

      • August 30, 2019

        5 1997 Cobra - StreetSlayers Installation Time: Afternoon

        Big difference

        I installed this flywheel on my wife's 97 cobra. There is a huge difference between the steel flywheel and this flywheel. Very simple. Well worth it. Aluminum driveshaft is next.

        Helpful (0)
      • March 24, 2019

        5 1998 Cobra - Newman Installation Time: Shop Install Installation Cost: $250-$500

        McLeod Aluminum Fltwheel

        So far i just got it back from the shop that did the clutch and flywheel. I paired this with a McLeod stage 2 clutch. It grabs, holds, and goes. I feel a little increased acceleration but it definitely was worth the money over a stock clutch.

        Helpful (0)
      • March 21, 2019

        5 2013 GT - Bigd Installation Time: Full Day


        Very nice!!! With the rxt . See what happens after brake in

        Helpful (0)
      • April 25, 2018

        5 2003 Cobra - BrookeD

        03 Cobra Flywheel/Clutch replacement

        Replaced stock Flywheel and Clutch with Mcleod parts. Excellent quality products, car drives perfectly.

        Helpful (3)
      • April 04, 2018

        1 2012 GT - CM

        Will not work with the stock clutch

        The inside hole of the stock flywheel is 7inch in diameter. The Mcleod flywheel is 6 1/4 diameter. The rivets that hold the clutch back plate to the friction disc keep the clutch from disengaging because rivets touch the flywheel

        Helpful (3)
      • October 01, 2017

        5 2003 Mach 1 - SpenserM Installation Time: Full Day

        Love it!

        I researched as much as I could on the steel vs. aluminum flywheel for a near stock, mostly street driven vehicle and made the decision to go with the aluminum one. And I'm glad I did! You don't have to rev it to the sky to take off, like what I read. It drives the same as it did with the steel flywheel. The revs climb faster and fall faster. In extremely pleased with my decision. If I have to change clutches in another vehicle, I would do another aluminum flywheel.

        Helpful (6)
      • August 10, 2017

        5 2013 Other - CarlM Installation Time: Weekend

        Mcleod aluminum flywheel

        Frist off i did both twin clutch and aluminum flywheel at the same time. The clutch was so light i thought some thing was broken. That being said, I love it. Car revs fast and smooth, pulls harder doesn't feel like car is working as hard. This is a winning Combination, that makes RS3 mustang much more enjoyable to drive.

        Helpful (5)
      • August 04, 2017

        5 2002 GT - CarlosS Installation Time: Full Day

        Mcleod on the money

        Fit just right along with clutch and pilot bearing and rear seal pivot runs like a new car. Can feel the difference in power when that clutch is popped. Must do mod

        Helpful (4)
      • July 26, 2017

        5 2014 GT - JoseJ Installation Time: Afternoon

        Light Flywheel

        It's a nice product light weight I pair it with a RXT clutch n everything fits like a glove

        Helpful (2)
      • April 20, 2017

        5 2003 Cobra - Duramax

        Great product! Fast shipping!!

        Ordered the McLeod flywheel as a replacement to my stock unit and looks and fits perfectly! Will be installing the McLeod twin disc clutch also

        Helpful (2)

      Questions & Answers (9 answers)

      5 Top Rated Questions

      How much does this flywheel weigh?

      • The flywheel weighs approximately 14 lbs.

      Helpful (0)

      Do you carry the replacement friction surface insert

      Can the McLeod aluminum flywheel be resurfaced?

      • McLeod flywheels can be resurfaced.

      Helpful (0)

      Will this flywheel work with a spec stage 3 ? 2012 mustang gt

      • While this will work with the Spec clutch it is recommended to match up the same brand clutch as flywheel for proper wear and tear.

      Helpful (0)

      Probably a good idea to change the 8 flywheel mount bolts when doing this yes? Which ones to use?

      • When installing the McLeod Aluminum Flywheel it is a good idea to replace the OEM flywheel bolts. We recommend ARP flywheel bolts, such as the ones linked below. Those linked below are for 96-04 4.6L engines.

      Helpful (0)
      Post Your Question
      4 More Questions
      Would this flywheel fit the Mcleod Street Extreme Clutch for a 2013 mustang with a 5.0L? 1 answer
      What's the inside diameter of the friction surface? 1 answer
      How much weight difference is this compared to the stock flywheel? What's the difference in rotating mass? 1 answer
      Power Handling What is this flywheel rated for Horsepower wise. Also, will this match up with any McLeod Clutch made for 11-14 Manual GTs? 2 answers

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Flywheel

      Tech Specs

      Flywheel Specifications
      Year/Model:99-Mid 01 GT, 96-04 Cobra, 03-04 Mach 1, 11-14 GT, 12-13 Boss 302Manufacture:McLeod
      Material:AluminumBolt Pattern:8 Bolt
      Hardware Included: NoneSFI Certifited:Yes

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