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Spec Stage 1 Organic Clutch Kit; 10 Spline (Late 01-04 GT; 99-04 Cobra; 03-04 Mach 1)

Item 60002
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      Product Information

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


      • Ideal Replacement.
      • Perfect for Your Daily-Driven 'Stang.
      • Organic Compound Disc.
      • Includes Throwout Bearing & Tool.
      • 10 Spline
      • Fits Late 01-04 GT, 99-04 Cobra, 03-04 Mach 1.


      Ideal Replacement. A powerful 'Stang needs a clutch capable of taking the heat. If enjoy launching your SN95, your OEM clutch might be starting to show signs of wear like slipping and that signature "burnt clutch" smell. Consider a SPEC Stage 1 as the ideal replacement for a 'Stang that sees daily driver duty - it will gives you the holding power and durability of high-performance clutches without the "on-off" feel of true race clutches.

      Daily Driver Friendly. This SPEC Stage 1 Clutch is designed for bolt-on naturally aspirated and mildly modified forced induction engines. It's best suited to 'Stangs that see daily driver duty and occasional track use, since it offers the most friendly pedal feel combined with SPEC's legendary durability.

      Premium Quality. The SPEC Stage 1 Clutch offers all the features you need from a more powerful clutch with superior driveability. SPEC Stage 1 Clutches feature their signature high clamp pressure plate combined with a steel-backed and multi-compound woven organic material disc and high torque sprung hub. Like with all SPEC Clutches, an alignment tool is included for easy installation.

      Value, Performance, Durability. When looking for a new clutch, trust Spec for the best in value and performance.

      • Fits: 1999 Cobra with a T-45
      • Fits: 2000 Cobra R with a T-56
      • Fits: 2001 Cobra with a TR3650
      • Fits: 2003-2004 Cobra with a T-56
      • Fits: 2003-2004 Mach 1 with a TR3650
      • Fits: 2001 Bullitt with a T-45 or TR3650
      • Fits: Late 2001-2004 GT with a T-45 or TR3650
      • Disc Dimensions: 11" X 10T X 1-1/16"
      • 10 Spline
      • Torque Rating: 420 ft./lbs.
      This Spec Clutch requires the use of a Spec flywheel for proper engagement. AmericanMuscle highly recommends the Steel Flywheel for this Stage 1 Clutch for optimum results. See the drop down menu option above.

      Technical Note. Because Ford made changes to the Mustang GT and Bullitt in mid year of 2001, be sure to check and see what kind of transmission type you have before ordering.

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

      Fitment: 1999 2001 2002 2003 2004

      Spec SF871

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (25)

      Write a Review

      Ratings Summary

      3.7 out of 5 overall rating from 25 customers

      Installation Time: Weekend

      Installation Cost: $250-$500

      • May 27, 2017

        1 2002 GT - JohnB

        Eats threw clutch cables

        Wish i never bought it. Clutch is to heavy for a daily and makes chatter noise. The first clutch cable was installed when clutch was done, it lasted a year. That cable was a steeda unit, which snapped, total garbage. Then installed a ford oem cable and got just over 5 years out of it. Mind you that's only 15k miles since its a weekend car. Then today a nice saturday went to pull her out and can not shift into any gears. Cable stretched this time. Tried adjusting multiple times and its obvi maxed out. Going to replace the cable again with ford oem, then later down the road replacing clutch with oem ford unit. That's what I should of done in the beginning.

        Helpful (4)
      • October 19, 2016

        3 2004 GT - Thomas427 Installation Time: Afternoon

        04 daily driver

        I've had the clutch before works really great american muscle always has extremely fast shipping the only bad side is the clutch release bearing/throw out bearing is already starting to chatter and squeal only after 100 miles or so I'm Still in the break in period of the new clutch and flywheel so I haven't performed any hard launch's or hard shifts guess I'll be ordering a ford racing TOB

        Helpful (5)
      • November 01, 2012

        3 2004 Mach 1 - masterchief Installation Time: Shop Install Installation Cost: $250-$500


        dont buy this clutch if your looking for a stock smooth clutch!!! chatters like nutz, and now my clutch fork is vibrating!!! 500miles!! dont waste your money on SPEC!!! now i have to pay 400 bucks again to drop the transmission and buy a new clutch !! thanks should bought a mc leod from the beginning!!! its holding the power but the chatter,vibration,noises aint worth it!

        Helpful (6)
      • July 13, 2012

        2 2003 Mach 1 - ryans03mach

        Spec Stage 1

        I'm not impressed. I had a ram in my last mustang and loved it. I decided to go with a spec for my mach 1 because I heard they are better. This clutch chatters more than any clutch I have seen in my life. I called spec and they weren't helpful in the least. The only good thing about this clutch is the feel of it, it is extremely easy to press it in. I resurfaced the fly wheel and got all of the components needed for an aftermarket clutch. This is just a terrible clutch, I definitely recommend a ram clutch over this.

        Helpful (5)
      • June 29, 2012

        5 2003 GT - Brooks Installation Time: Shop Install Installation Cost: $250-$500

        Excellent clutch

        Great clutch for your N/A mustangs and mild FI stangs. Great grab, much smoother than stock clutch. Once you break it in, you can floor it with no worries of overpowering your clutch. As my mechanic would say "now you can really get jammin' "

        Helpful (5)
      • April 06, 2012

        1 2004 Mach 1 - JUIC Installation Time: Afternoon

        flat out terrible..

        clutch chatter since day 1.. never went away, and pull it out 5,000 miles later and burn marks everywhere. Now i'll have to be getting a new flywheel as well as going to a RAM stg3. Don't waste your money on this paper weight.

        Helpful (6)
      • April 13, 2011

        1 2003 GT - Mike

        junk bearings in a junk clutch

        Installed the clutch everything went good felt really good, improvement over stock. Drove it easy for a day came onto it a little and I heard a bearing howling. Took it apart and saw that the garbage pilot bearing which was included in the kit had crapped out, i believe the release as well. I bought some ford oem ones as i don't have the time to wait for Ford Racing to be shipped in. I hope the oem ones will be sufficient. I tried contacting Spec but im sure they wont do anything for me so I will have to eat a few hundred bucks to have it installed again. Spend the money on a zoom clutch or centerforce dont cheap out like me, or the extra money you spend taking it out and in will equal that of a good brand.

        Helpful (9)
      • March 27, 2011

        5 2003 GT - Dom

        Good Clutch

        Installation was straightforward. Performance is great, much smoother than stock and sticks well. I haven't popped it yet since I'm still breaking it in, but its already a great improvement over stock.

        Helpful (5)
      • February 21, 2011

        5 - robert los angeles


        i just got my spec 1 and am waiting for the wear in period b4 i can give it a good run but i do have a adjuster but its taking me time to adjust it right , the engagement don't feel right and the pedal shakes my stock clutch felt better engagement but the spec jumps after each engagement

        Helpful (6)
      • February 10, 2011

        5 - Robert Hubbard

        Spec Stage 1 Clutch (01-04 GT Cobra)

        Very nice clutch. Great quality from Spec. We always use them and get great results. Easy install. The price and performance is just unbeatable.

        Helpful (5)

      Questions & Answers (3 answers)

      3 Top Rated Questions

      Do I have to use a spec flywheel? I have a brand new Ford Performance Billet Steel 6 Bolt flywheel. The same one on here.

      • Yes, a spec flywheel is required to be used with the spec clutches for proper operation.

      Helpful (0)

      Would it be bad to use this clutch with the SPEC aluminum flywheel?

      • Hi, we will need more info about your build to help you with your question about using the combination of Spec Stage 1 Clutch and Spec Billet Aluminum Flywheel. Please feel free to give us a call or send us a email so we can help you with your question.

      Helpful (0)

      Do I need anything else to go with this new clutch? Got '03 mustang, I don't like surprices when I take it to get done, thanks for the help, loving d products I just got!

      • With a Spec Clutch, you'll want to get a Spec Flywheel for perfect engagement and clearance. You'll also want to get the Clutch Adjuster Kit to prolong the life of your new clutch and improve shifts. I've attached the link below for the adjuster kit so you can take a look! Don't hesitate to contact us if you have any other questions!

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      Hardware included:
      • Pressure Plate
      • Clutch Disc
      • Throwout Bearing
      • Pilot Bearing
      • Alignment Key

      Tech Specs

      Clutch Kit Specifications
      Year/Model: Late 01-04 GT, 99-04 Cobra, 03-04 MACH1 HP/Torque Rating @ Flywheel: 420 ft-lbs
      Manufacturer: SPEC Disc Dimensions:

      11" x 10" x 1-1/16"

      Transmission Type: Late 01-04 GT: T-45 or TR3650
      99-01 Cobra: TR3650
      03-04 Cobra: T-56
      03-04 MACH1: TR3650
      SFI Approved: Yes
      Material: Organic Hardware Included:

      Pressure Plate, Clutch Disc, Throwout Bearing, Pilot Bearing, and Alignment Key

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