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

Market Price $349.99 You Save 20% ($70.00)
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$279.99 (each)

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  • Item 62628
  • MPN# 463458

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Features, Video & Details

  • Lightened Steel 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

Review & Installation Video

Review & Install Video

Stephanie: Hey, guys. Stephanie with americanmuscle.com, and this is my review on McLeod's 8 Bolt Lightened Steel Flywheel that's going to work for '96 to '04 Cobras and Mach 1s, '99 to mid-'01 GTs, and '11 to '14 GT and Boss Mustangs. This 8 Bolt Lightened Flywheel from McLeod is going to be for Mustang owners that are replacing their clutch and are looking to replace instead of resurface their flywheel as well. So your two options when you're replacing your clutch are either resurface your old flywheel or go for a new one. And honestly, while you can resurface, I really think it's best to go with a new flywheel by the time you're done paying for resurfacing anyways. Plus the flywheel's really pretty important to the clutch's functioning and can dictate how well it will perform and for how long. So if you're springing for a new clutch anyways, why not give it the best components to do its job to the best of its abilities? So a bit feature about this flywheel is that it's lightened, but I just wanted to address some things with this here. Having a lighter flywheel isn't going to change the actual horsepower of the engine, but if we think of it as rotating mass, in order to accelerate, all of the rotating mass needs to be moved, like your wheels, your driveshaft, your flywheel, all of that. The more that rotating weight is, the more power and RPMs it will take to move those items and get the car moving. The less power that you car needs to speed up the flywheel, the more power available to speed up everything else. So this flywheel isn't going to add horsepower, but it will leave more available horsepower to accelerate the car and get it off the line per se. So, this is a steel flywheel that's going to weigh 20 pounds. This is lighter than the factory flywheel, but it isn't going to be as light as an aluminum flywheel. But when you're shopping for a flywheel and clutch, you really need to understand what you're looking for from these components. There are tradeoffs between going with a lighter or slightly heavier flywheel, so lighter isn't always better. It just depends on the situation. A heavier flywheel is going to be smoother overall, smoother at takeoff, smoother at idle and cruising, but as I explained earlier, a heavier flywheel will mean slower acceleration. This is why this steel flywheel is a good option for street cars and some recreational racing and in general, high performance applications that can see some spirited driving. If you have a car that still sees some street time, but you really want the highest performance possible, then you might want an aluminum flywheel instead as long as your budget agrees with that. Now, getting into a little bit more detail about this one here, it does have 164 teeth on the ring gear. It's neutrally balanced, and has that 8 bolt main pattern. So if you're shopping for a '99 to mid-'01 GT, just check your production date since the mid-'01 has a production date of June of '01. And this is SFI certified for you guys that are planning on using this in high performance or drag racing applications. As far as price goes, you're looking at between $200 and $300 for this flywheel which, like I mentioned before, is less than an aluminum flywheel with cost, and if we compare it to other steel flywheels, we will see that it's on the less expensive side there too even though it's coming from a manufacturer with a name like McLeod. When it comes to the install, it is going to be time consuming, and I would assume that you're going to be replacing your clutch with a flywheel, so we can combine it all into one. I will say that if you haven't really done anything like this before, then it wouldn't be a bad idea to take everything to a shop for this one unless you have someone in the know helping you out. I'll call this one a three out of three wrenches on the difficulty meter, and you're probably looking at about four hours' time if you do decide to tackle this yourself. If you do choose to do this yourself, I would really recommend trying to gain access to a lift. You're obviously going to be dropping your trans, driveshaft and exhaust, so performing this on jack stands could be a little bit difficult and a helping hand with this install could go a long way. You'll need a small range of different socket sizes here and some other miscellaneous tools, but nothing out of the ordinary. Just make sure to have a torque wrench though because you really should be torquing down to spec in cases like this one here. Lastly, just as a side note, don't forget about that clutch break in period no matter who is installing the clutch. Wrapping things up here, the McLeod Lightened Steel Flywheel is a good middle-of-the-road compromise between the heavy stock flywheel and an aluminum flywheel. It's a good option for owners that are looking to keep some of the energy contained in the drivetrain and have a good street driving experience. As always, check this thing out online and see what you think for yourself. I'm Stephanie, and for all things Mustang, keep it right here at americanmuscle.com.

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.

Steel Construction. Manufactured from steel for extra strength, this McLeod Flywheel features a ring gear of 164 teeth, an engine balance of 0 oz, and an eight bolt main pattern. Steel flywheels are perfect for street and race applications where off the line acceleration is 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.

Application. 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 Details

What's in the Box
  • (1) Flywheel
Installation Info
Tech Specs
Flywheel Specifications
Year/Model: 99-Mid 01 GT, 96-04 Cobra, 03-04 Mach 1, 11-14 GT, 12-13 Boss 302 Manufacture: McLeod
Material: Steel Bolt Pattern: 8 Bolt
Hardware Included: None SFI Certifited: Yes
Will it fit my Mustang?
  • Bullitt - 01
  • GT - 99, 00, 01, 11, 12, 13, 14
  • Cobra - 96, 97, 98, 99, 01, 03, 04
  • Mach 1 - 03, 04
  • Boss 302 - 12, 13

Fits Manual Mustangs with a 8 bolt main only

People Who Bought This Item Also Bought

Most Helpful Reviews

5/5
wonderful

installed easy, new bolts.. works like a charm. excited to have it on the car

Helpful (1)

5/5
Much Needed

I installed this prior to putting in my new McLeod RST twin-disk clutch. Just gotta make sure those bolts are lined up, they only go one way...lol. I made sure to hold this piece in with a new set of ARP ...

Read More
Helpful (1)

Overall Rating 4.8 out of 5 stars
Read All 20 Reviews

Customer Photos (5) Submit Your Photo

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9 Questions / 5 Answers

Ask a Question

Will it work fine with a stock oem clutch? Or do I have to have a McLeod clutch?

Jon

  • For the best functionality of the McLeod Lightened Steel Flywheel, we would highly recommend the use of a McLeod clutch. The stock clutch has successfully worked in some cases, however, not all fit 100%.

    AMJEFF

Helpful (0)

I'm planning on purchasing this for my 2014 5.0 will i need new bolts or can i re use mine?

Poli

  • Hello! Although you are able to reuse your old bolts, we HIGHLY recommend that you get new bolts. One less thing you have to worry about!

    Doug P

Helpful (0)

what is better lightened steel or aluminum and what are the differences between them. i making a coyote swap with stage 3 cams COYOTE swap

JesusG

  • The differences between the lightened steel and the aluminum flywheels is that the aluminum flywheels are only for racing mods. The lightened steel would work if this is a street car regardless of the Coyote swap with Comp Cams Stage 3 cams installed.

    KevinD92

Helpful (0)

Im wondering if this flywheel works with exedy mach 500 stage 3 clutch. Clutch comes with 3 dowel pins would they fit? Thanks i appreciate it

Bud

  • The McLeod Lightened Steel Flywheel would work with the Exedy clutch, however it is recommended to use an Exedy flywheel. The dowel pins should be able to be used with this flywheel.

    Rob D

Helpful (0)

Is the steel or aluminum flywheel better for a street car, with occasional track outings. Looking to use the McLeod RST with a VMP stage 2 set up, just not sure which flywheel is right for this set up.

GrumpyBill

  • Hello! A steel flywheel is better for a street car. An aluminum flywheel is meant more for track use, as it is trickier to drive on the street compared to a steel flywheel.

    JacobC

Helpful (0)

what is better for flywheel with RST clutch ( lightened steel ) or ( aluminum) and what are the differences between them . Warning:- ( my car is 2011 Gt stock )

naifG

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Customer Reviews (20) Write a Review

Overall Rating 4.8

out of 5 stars

Installation Time:Full Day

Installation Cost:$250-$500

  • Fit 4.866667 4.9
  • Bang For Your Buck 4.666667 4.7
  • Grip / Bite 4.733333 4.7



  • 5/5

    Installation Time: Less than 1 Hour

    July 05, 2017

    wonderful

    installed easy, new bolts.. works like a charm. excited to have it on the car

    JeffG

    Year: 2011 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    March 30, 2017

    Much Needed

    I installed this prior to putting in my new McLeod RST twin-disk clutch. Just gotta make sure those bolts are lined up, they only go one way...lol. I made sure to hold this piece in with a new set of ARP bolts.

    jbaidas

    Year: 2013 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Weekend

    December 22, 2016

    Flywheel in 03 Cobra

    Had one my friends put this and the McLeod clutch in. I have not had any issues still in that 500mile break in period but no issues and no noise. Just bought the car so I can't wait to drive it in the spring.

    Andrew3

    Year: 2003 Submodel: Cobra

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    December 16, 2016

    McLeod Flywheel

    The Flywheel is very lightweight and much better than the stock I replaced it with. The clutch grabs it with ease

    DarkKnight504

    Year: 1996 Submodel: Cobra

    Helpful (1)

  • 4/5

    October 04, 2016

    Good flywheel

    Flywheel works well just had a little fitment issue installing the 8 bolts that hold on the flywheel 2 holes had to be made bigger straight across each other and same size for balance ... other than that it works awesome at the track and street

    Adrian

    Year: 2013 Submodel: GT

    Helpful (1)

  • 5/5

    September 20, 2016

    Flywheel

    The flywheel is an upgrade from factory it was almost to nice to put on.

    Richls99

    Year: 1999 Submodel: GT

    Helpful (1)

  • 5/5

    August 29, 2016

    Flywheel

    It works wonderful Great products from American Muscle all the time with the best support team to at anytime

    Moss

    Year: 1996 Submodel: Cobra

    Helpful (1)

  • 5/5

    August 26, 2016

    Nice Product

    No chatter when installed with the Street Pro clutch. Flywheel appears to be good quality and install was a breeze.

    GTT

    Year: 2003 Submodel: Mach 1

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    June 08, 2016

    New flywheel and McLeod clutch

    Went to this lightened steel flywheel paired with a McLeod street extreme clutch and Ford Racing Aluminum driveshaft. Super smooth engagement and a very positive Pedal feel. Much smoother than my Old Exedy Mach 350 and lightened aluminum flywheel set up.

    Justa2v

    Year: 2000 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    June 06, 2016

    Outstanding upgrade!

    Paired with the Mcleod RST twin disc clutch I purchased. Requires very little effort, zero slip with 547rwhp.

    Cabezon

    Year: 2010 Submodel: GT

    Helpful (1)

  • 4/5

    Installation Time: Weekend

    May 15, 2016

    Can't Complain

    I bought this when my original stock clutch finally went out after just over 184K miles. I did a major overhaul of the clutch system, with a King Cobra clutch, pressure plate, Ford Racing TOB and Pilot bearing, and there was no way I wasn't going to upgrade the flywheel while I was there as well. Engagement is smooth, and throttle response is much improved, though RPMs don't shoot straight to the moon like with an aluminum flywheel. Nor do they fall off as sharp, preserving daily drivability.

    That2valvetho

    Year: 1999 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    December 26, 2015

    Bought as a gift

    Purchased as a gift for a friend. They were ecstatic! Haven't heard anything bad!

    whitbail

    Year: 2009 Submodel: GT Nesquehoning, PA

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    December 10, 2015

    Nice part for the money

    Great part the money and works fine still have not use more that 500 miles so I can feel how does it work for real but I'll let you know

    Mrmach75

    Year: 2002 Submodel: Other Las Vegas

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    October 07, 2015

    McLeod Lightened Billet Flywheel

    Very nice, high quality flywheel i matched up with a McLeod Street Pro clutch kit. All new accessories also replaced during install. No shutter with clutch. Smooth, strong grip. New flywheels are great when replacing the clutch. This one has nothing to complain about at all.

    Robb10

    Year: 1996 Submodel: Cobra Leesburg, VA

    Helpful (1)

  • 5/5

    Installation Time: Weekend

    June 20, 2014

    Great flywheel

    This is a great bolt-on upgrade if you are planning to put down real power! 100% better craftsmanship than stock

    Bigcountry757

    Year: 2004 Submodel: Mach 1 Hampton, VA, USA

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    June 21, 2017

    Flywheel

    Great flywheel! a little lighter can tell it makes it easier on the motor to turn

    ChaneL

    Year: 1999 Submodel: GT

    Helpful (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    June 17, 2017

    McLeod Lightened steel flywheel

    I have just installed this flywheel with a Exedy Mach 500 clutch and th ey seem to be working really well together so far. I have about 300 miles on them and they do not chatter or make any other noises from under the car. No funny vibrations or anything like that in my 03 Cobra.

    RyanJ

    Year: 2003 Submodel: Cobra

    Helpful (0)

  • 5/5

    Installation Time: Less than 1 Hour

    June 15, 2017

    Great product

    Grabs alot better than before and smooth as ever I recommend this product for every cobra and Mach 1 owner that's doing a rebuild..

    VincentJ

    Year: 2004 Submodel: Mach 1

    Helpful (0)

  • 3/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    May 03, 2017

    Boss 302

    Allows the engine to rev faster. Pulls harder. However, there is a harmonic vibration at points in the RPMs that the flywheel does not dampen. I believe this is a problem with the new flat crank engine in the Shelby 350. ( light flywheel ) and vibration. I will follow this to see if it changes or becomes a problem.

    BryanH

    Year: 2012 Submodel: Boss

    Helpful (0)

  • 5/5

    July 19, 2016

    Flywheel

    Great fit on my 2000 mustang GT 4.6, quite, smooth operation!

    Nick

    Year: 2000 Submodel: GT

    Helpful (0)

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