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McLeod RST Twin Disc 800HP Organic Clutch Kit; 23 Spline (15-17 GT)

Item 387556
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      Review & Installation Video

      Hey, Guys! Stephanie with Here with a quick review of the McLeod RST Twin Disc Clutch. Rated to 800 horsepower for the 2015 and up S550 GT Mustang. We're going to cover a few things in this video like the components of this particular clutch and an overview of the install as well, which I can tell you right now is going to be a three out of three wrenches on the difficulty meter, since a clutch replacement is a lot of work. Most people are looking at taking the car to a professional for the install.The McLeod RST Twin Disc Clutch is going to be something that you should consider if you have an S550 GT with some modifications that's making enough horsepower to overpower the stock clutch. This clutch is rated to support up to 800 crank horsepower and thanks to the twin disc design, it keeps a very light pedal feel. Other heavy-duty clutches that keep the normal single disc design, that support power numbers this high, have a very heavy pedal feel. This clutch, on the other hand, is able to support high horsepower numbers with a very light pedal feel.If you compare this clutch to the stock clutch, the main difference is going to be the fact that this clutch has two clutch discs instead of one. The stock clutch has one disc and when you start upgrading clutches over the stock clutch but still maintain only one disc, you see things like different compounds that are more heavy-duty and able to handle more horsepower and torque. You also sometimes see changes in design, like a puck style clutch or basically, more friction surface area to handle the power. As you start to change compounds and material, you get a different type of engagement and disengagement, and a stiffer pedal feel. The RST on the other hand, has two clutch discs that are made from an organic compound, which happens to be a more forgiving compound. The old saying that two is better than one comes into play here, since these discs might not be very strong on their own, but when you pair them together they can handle a lot of horsepower and torque.The twin disc clutch is going to be able to dissipate heat better. You have twice the surface area to ensure you're getting a more positive engagement when the pedal is released since now you have two discs that are going to be separated by a floater plate. This is especially necessary for the street/ strip application of this clutch. And the best part, the pedal feel. I keep mentioning pedal feel, and a lot of the pedal feel has to do with the material of the clutch discs. Like I just said, these clutch discs are made from an organic compound and they're twin sprung hub friction plates. This means that there's a smooth engagement with very little pedal effort. Being sprung hub and having an organic surface material also means that the clutch has a nicer release characteristic, which makes it a good clutch for both street and strip applications. This clutch is designed specifically for the MT82 trans, which has a 23 spline transmission. It's going to come with your pressures plate, your clutch discs, a floater plate for in between the discs, an adapter ring, and a pilot tool as well. You will need to figure out what you plan on doing with the flywheel, though. You can always resurface your current flywheel but I'd recommend just purchasing a new McLeod flywheel because it'll mate with the new clutch perfectly and allow your clutch to function to the best of its ability. There are a few different types of flywheels that you can choose from depending on your application and what you built your car for. The only other thing I'd recommend picking up if you don't already have it is a steel braided clutch line. The stock one has all kinds of performance issues and if you're at the point of shopping for a twin disc, I'm sure you know what I'm talking about. When it comes to price, you can expect to spend between $700 and $800 for this clutch. Twin disc clutches do tend to cost more than a single disc clutch, even sometimes a puck style clutch, although they do tend to be close in price. The McLeod is more budget friendly than the RAM twin disc is, but the RAM does come with a flywheel while you have to purchase that separately with the McLeod. Depending on which material flywheel you want, you're looking at spending a few hundred dollars more.I'm sure you guys already expected this, but the install here is not easy. It's a lot of work, so you need some experience to get this done yourself, and a lift is going to be your best friend. If you don't have these things, it might be best to take the car to a shop for the install. Overall, this is a three out of three wrench install on our scale here and should take about four hours to complete. You've got to drop your trans, which means you need to unbolt your exhaust and drop it from the midpipe back and your driveshaft as well. You'll have to drop your starter and unbolt the bell housing to get the MT82 out of the way so you can get to the clutch. Once the stock clutch is out of the way, McLeod does tell you how to exactly assemble the clutch properly so you don't have to worry about that. The only other thing that I wanted to mention here is make sure you follow the break-in period with the clutch if you want the clutch to be smooth and have a long life. Wrapping things up here with the McLeod RST Twin Disc Clutch, this is a street application clutch that can handle some strip time as well. It's capable of holding up to 800 horsepower and maintain and very light pedal feel thanks to the clutch design and the organic compound that it's made out of. As always, I suggest you check this out more online for yourself and for all things Mustang, keep it right here at

      Product Information

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


      • McLeod "RST" Twin Disc
      • Perfect for Street or Strip
      • Handles Up to 800 Horsepower
      • Includes Pressure Plate, Two Organic Friction Discs, Floater Plate, Adapter Ring and Pilot Tool
      • 23 Metric Spline
      • Fits 2015-2017 GT Mustangs


      Street Or Strip. The McLeod RST Twin Disc Clutch is perfect for aggressive street driving and occasional drag strip use. Able to hold up to 800hp the RST Twin Disc Clutch kit is ideal for extreme horsepower Mustangs that need a good reliable street clutch.

      Twin Organic Discs. Featuring organic faced twin sprung hub friction discs; this RST Clutch will provide smooth engagement with a soft pedal effort and excellent release characteristics, making this a very driver friendly clutch suitable for all street performance enthusiasts.

      Application. This McLeod RST Twin Disc Clutch Kit is designed for use on the 2015-2017 GT Mustangs equipped with a MT-82 manual 23-spline transmission.

      Technical Note. The McLeod Twin Disc Clutch should be combined with a matching McLeod Flywheel for best performance and proper installation.

      • Fits: 2015-2017 GT with a MT-82 transmission
      • Disc Dimensions: 11" X 23T X 1"
      • Horse Power Rating: Up to 800
      • Includes: Pressure plate, two clutch disc, floater plate, adapter ring, and pilot tool

      It's recommended that you add an SR Performance Braided Stainless Steel Hydraulic Clutch Line during your new clutch install. Stock plastic clutch lines can fail during aggressive driving. Stainless steel clutch lines help prevent gear lockout and provide superior clutch pedal feel, even under the toughest conditions.

      Wondering what kind of transmission you have? Click Here to find out!

      Fitment: 2015 2016 2017 Details

      MPN# 6912-25

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (31)

      Write a Review

      Ratings Summary

      4.3 out of 5 overall rating from 31 customers

      Installation Time: Full Day

      Installation Cost: $500-$1000

      • March 31, 2020

        5 2017 GT - Hellyotee Installation Time: Afternoon

        Best clutch ever

        I can’t express how good this clutch is, buy it and see for yourself

        Helpful (0)
      • January 23, 2020

        2 2017 GT - keystang Installation Time: Full Day

        Ruby 5.0

        RST did not hold or only good for one year. Should have been advise RXT clutch would be a better choice

        Helpful (1)
      • November 12, 2019

        1 2017 GT - JaredB Installation Time: Afternoon

        Stock clutch is better

        Like the description says... Car was making decent power but was slipping on hard shifts so got this clutch with a McLeod flywheel and did the 500 mile break in of city driving. This clutch won’t even hold street pulls with out slipping the minute it gets into boost. McLeod is useless, their customer service is a joke and I would put a stock clutch back in before I bought something else from them. Save your money and just buy a mantic of Exedy.

        Helpful (2)
      • October 06, 2019

        5 2015 GT - Kaleb

        Great clutch for power

        Lasted me a year over crazy hard driving, I drive it like I stole it and it handled it well.

        Helpful (0)
      • July 18, 2019

        5 2016 GT - Brandon8y0rice Installation Time: Shop Install Installation Cost: $500-$1000

        Game changing

        This clutch is a HUGE step up from the factory! Don’t waste your money on anything else.

        Helpful (0)
      • June 15, 2019

        5 2015 GT - 2015m Installation Time: Afternoon

        Best clutch

        Very good quality. Swifts good into gear and no more locking out problems. Very simple to install. Best twin clutch ever.

        Helpful (1)
      • April 22, 2019

        2 2017 GT - Platinum Installation Time: Afternoon

        RST fail.

        The car makes 740whp. The stock clutch was holding the power just fine when doing hiway pulls(60-130) Figured just to be proactive I'd out the RST in. I know I'm a little over the recommended HP level but I wasn't launching at the track and the stock clutch was holding so RST should do fine. Nope. After a 800 mile break in I did some hiway pulls. Right from the start the clutch felt wrong after the pull. I immediately had troubles going into 1st gear. Pedal got real mushy as if it was way to hot. With less then 1200 miles on the clutch it has now completely given up. Totally slips any hard pull and is parked because I can't get it in any gear :( it felt and drove great until I started doing pulls. No chatter, no noise. Pretty dissapointed.

        Helpful (5)
      • April 17, 2019

        5 2017 GT - DonovanP Installation Time: Afternoon

        Feels great.

        Make sure you buy the appropriate flywheel if not you will destroy the clutch. Wasn’t told that so it happened.

        Helpful (2)
      • April 14, 2019

        4 2017 GT - SDCrowdKiller Installation Time: Full Day Installation Cost: $500-$1000

        Light Pedal, Strong Bite, Loud Chatter

        Super strong bite and great shifts. The pedal feels super light it doesn't seem right, I went from a Stage 1 Excedy clutch that had a super heavy pedal to this McLeod and it threw me off a lot with how light the pedal is. The only issue I have is the amount of clutch chatter it has at low rpm in stop and go traffic, thought something was wrong or I wasn't driving it properly till I heard the chatter is "normal" for these clutches. Kind of embarrassing at first when trying to pull up slowly and all you hear is the sound of metal rattling, but if that's normal and the clutch is doing it's job, so be it. Love it so far other than the chatter, can't wait to see what I can do with it once it's broken in properly.

        Helpful (1)
      • March 25, 2019

        3 2015 GT - MikeT Installation Time: Full Day

        Mcleod RST clutch

        The clutch is great, however they did not include a pilot tool. Called the manufacturer and they said they would have it to me in 7 to 10 business days. Not acceptable since i had my car tore apart. Luckily the local ford dealership bailed me out cause they had one laying around and they let me borrow it. Still breaking the clutch in but so far no problems

        Helpful (1)

      Questions & Answers (11 answers)

      5 Top Rated Questions

      I’ve heard that this clutch disk does not match up to the stock flywheel even though this clutch disk is the same diameter as the stock clutch 11”. Is this true?

      • This can be matched up with the stock flywheel but it is highly recommended to get the matching McLeod flywheel.

      Helpful (1)

      Is the HP rating at the wheels or crank?

      • This will be the measured engine power without the drivetrain.

      Helpful (1)

      Will this pressure plate work with a stock throughout bearing on a 2017 Mustang GT? If not what would you recommend?

      • Yes, this clutch kit will work with the factory throw out bearing.

      Helpful (1)

      Are there any concerns with this clutch not having a torsion damper?

      • The McLeod RST Twin Disc 800HP Clutch is designed to work with its unsprung hub, and we have not seen any issues with this setup. Due to its high amounts of grip, this is not recommended for stock or lightly modified Mustangs.

      Helpful (1)

      How’s the clutch stiffness on this clutch? Is it pretty heavy or not bad for a daily drive in traffic?

      Post Your Question
      6 More Questions
      Is this a good clutch for a 2017 mustang gt, Cobra jet manifold, Headers, E85?? Making 460rwhp. Or what’s the better option ? 1 answer
      How long does clutch last? 1 answer
      Will this clutch fit a 2014 Mustang gt? 1 answer
      Will this clutch work on a 2017 Mustang GT with Performance Pack without drivability problems or issues? Have Magnaflow pipes and am pushing about 450 HP at Crank. Plans to pump HP upto at least >500 HP with Stage 3 intake (GT350 manifold Throttle body, with Tune, and cold air intake). May option for Eaton 2.3L Blower (660 HP). If not what would you recommend? 1 answer
      Would you have to do a crank relearn when you install the clutch and the flywheel. Thank you 1 answer
      Will this work in an 18? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • Pressure plate
      • Two organic clutch discs
      • Floater plate
      • Adapter ring
      • Pilot tool

      Tech Specs

      Year/Model:2015-2017 GTHP/Torque Rating @ Flywheel:Up to 800 HP
      Manufacturer:McLeodDisc Dimensions:11" x 23T x 1"
      Transmission Type:MT-82SFI Approved:No
      Material:OrganicHardware Included:Pressure plate, two clutch discs, floater plate, adapter ring, and pilot tool

      Will It Fit My Mustang

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