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Ford Performance Tremec TKO 600 Extra HD 5-Speed Transmission - 0.68 5th Gear

Item 50232
Market Price $3,163.99 You Save 12% ($364.00)
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      Review & Installation Video

      Product Information

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


      • Heavy Duty TKO
      • Gear Ratios: 1st 2.87; 2nd 1.90; 3rd 1.34; 4th 1.00; 5th 0.68
      • Close Ratio 1st Through 4th Gear
      • Improved Shift Forks
      • 4615 Steel Gears for Increased Torque Capacity
      • Torque Capacity - 600 lbs/Ft
      • Input Shaft - 26 Spline
      • Output Shaft - 31 Spline
      • Fits 1979-1995 Mustangs


      Heavy Duty TKO. Is your high performance 5.0L Mustang making more power than your stock manual transmission can handle? Then you need to upgrade to the Ford Racing Tremec TKO 600 Extra Heavy Duty 5-Speed Manual Transmission. This Tremec TKO replaces the older TR-3550 and has a torque capacity of 600 lbs./ft. making it perfect for high-performance applications.

      Built Ford Tough. The Ford Racing Tremec TKO 600 Transmission has a close ratio 1st through 4th gear and is equipped with a 26 spline input shaft and a 31 spline output shaft. It features improved cast iron shift forks, a one-piece counter-shaft, and gears made of 4615 steel which increases torque capacity.

      Gear Ratios. 1st 2.87; 2nd 1.90; 3rd 1.34; 4th 1.00; 5th 0.68

      Required Upgrades. The Ford Racing Tremec TKO 600 Transmission requires a Ford Racing bellhousing (M-6392-R58), a 31 spline driveshaft yoke (M-4841-A), and a 10.5" clutch disc (M-7550-T302) designed for use with a 26 spline input shaft.

      1979-1993 Installation Notes.Installation of the Ford Racing Tremec TKO 600 Transmission in a 1979 to 1993 Mustang will require the use of a Ford Racing M-5059-A crossmember, 1979-1981 will models will require some modifications.

      1994-1995 Installation Notes.Installation of the Ford Racing Tremec TKO 600 Transmission in a 1994 to 1995 Mustang will require modifying the vehicle crossmember, lengthening the driveshaft by 0.625'' and the use of Ford Racing clutch fork part# E6ZZ-7515-A.

      Application. The Ford Racing Tremec TKO 600 Extra Heavy Duty 5-Speed Manual Transmission is designed for use in the 1979 to 1995 5.0L V8 Mustangs. Can also be used in 4.6L applications when combined with a Ford Racing bellhousing M-6392-M46 and Ford Racing 11" Clutch Kit M-7560-T46.

      NOTE: Ships Continental 48 States ONLY. No Canada, APO/FPO, Hawaii, Alaska, Puerto Rico, Guam or Us Virgin Islands.

      If shipping to a business, please include the business name. Also, after your order is placed, be prepared to let us know if you will need a Lift-Gate service. You will be contacted via email before your order ships.

      Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 Details

      MPN# M-7003-R58H

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (8)

      Write a Review

      Ratings Summary

      4.9 out of 5 overall rating from 8 customers

      Installation Time: Full Day

      Installation Cost: $1000+

      • April 30, 2018

        4 1995 GT - Steven Installation Time: Less than 1 Hour

        Tremec TKO 5 speed

        The transmission is great, easy install, few to no problems. The only issue is that it sounds like gravel when you shift into 4th and 5th gear. Otherwise it runs great and shifts easy!

        Helpful (7)
      • February 13, 2018

        5 1995 GT - DerekF

        Derek’s tko600

        This was the best mod ever, shifts are shorter and gears will hold the rpm .

        Helpful (11)
      • October 03, 2017

        5 1986 Other - Mike1971 Installation Time: Full Day


        I love the way it shifts. Very smooth. The TKO replaced a C4, so driving on the street is a dream. Its great a the track pulls great. Love it.

        Helpful (13)
      • September 13, 2016

        5 1990 GT - Joeycbr600

        Amazing !!!!!!!

        Well what can I say there's nothing like a brand-new transmission Out the box .. If you're running a car with a lot of HP and torque especially a Mustang with a T5 .. You know chances are your T-5 not going to last long . I must say this transmission has a totally different feel it drives a lot smoother than a T5 in my opinion .. Overall it's very much worth it It does not pay the purchase another T5 spend the extra get the bell housing and new clutch crossmember and transmission .. Also remember to use GM synchromesh transmission fluid ..

        Helpful (13)
      • December 14, 2015

        5 Pre-79 Other - Frankb Installation Time: Afternoon

        Purchased for Cobra Roadster Project

        The transmission was installed on the engine before being installed into the chassis as a unit. Prior to installation, the tail shaft housing mounting lug was removed for cross-member clearance. The transmission was well packaged and palletized for protection during shipment and arrived without damage.

        Helpful (13)
      • March 23, 2014

        5 1987 Other - Josht12 Installation Time: Weekend

        Awesome transmission

        Love this transmission. Only had it installed a couple but I'm already in love. Still got awhile before she's fully broken in. I read some reviews before saying the Tremec TKO 600 was a little rough on shifts. Especially during break in. So far mine has been butter all the way up to 5th. I don't know enough words to describe how great it is. Point is, I love the transmission and recommend it for anyone wanting a great street transmission. If you have the money for all of the required upgrades. Then it's definitely worth it.

        Helpful (12)
      • December 22, 2012

        5 1987 GT - cooper954 Installation Time: Afternoon

        the tko 600 is the best shifting transmission I've ever had!

        the tko 600 for my 87 coupe is awesome! shifts great at high rpms. and was pretty easy installing. I would buy this transmission agin if I had to

        Helpful (13)
      • May 26, 2012

        5 1987 GT - charger3 Installation Time: Shop Install Installation Cost: $1000+

        Recommended only if you have the money

        As soon as I got it out of the shop I drove it around the town before parking it but man was there a difference in performance I strongly recommend this transmission if your looking for a performance gain but only if you have the money

        Helpful (17)

      Questions & Answers (17 answers)

      5 Top Rated Questions

      Which transmission would be a better choice the .68 or the . 82? I'm running a 3.73's in the rear end.

      • When choosing the best Ford Performance Tremec TKO 600 Extra HD 5-Speed Transmission for your vehicle, the difference will be in the 5th gear or overdrive gear. the .82 will offer better acceleration in 5th, the .68 will offer decreased RPM's and fuel consumption in fifth gear.

      Helpful (5)

      Will the trans fit a the v6 on a 94

      Will this fit a 94 with a v6 in it

      Hello, I am installing this into a 1994 Mustang Cobra. Does American Muscle sell a driveshaft that will complete this install for me with my application? Thanks in advance, Zach

      • We do not sell a driveshaft that would bolt on to this setup.

      Helpful (0)

      It’s say fits 79 to 95 mustang, but it says it won’t fit my 89 mustang...? Can anyone help...?

      • This will fit all 1979 to 1995 5.0L V8 Mustangs.

      Helpful (0)
      Post Your Question
      10 More Questions
      I have one it was sitting in my friends shop n I put it in n it stuck in 2 or 4 gear why would that happen?? 1 answer
      What transmission fuild do you on TO 600? 1 answer
      i have a 1995 mustang gt what clutch fork do i need? 1 answer
      I noticed this transmission fits an 87 mustang lx, will it fit my 87 mustang gt? 1 answer
      Is there any reason this transmission is not listed in the 99-04 listings? I am getting one in the very near future and i prefer to shop American Muscle over LMR...I almost missed the listing until I saw your video for the TKO 600 on you tube. 1 answer
      i noticed you do not have matching output splines for transmission and driveshafts....31 and 26/do i have to buy a second yoke? 1 answer
      Will the TKO fit in replacement for the T45 on a 98 Mustang GT? If not do you carry a trans that will? 1 answer
      So if this transmission is a direct fit for the 5.0 windsor engine, right? I'm considering swapping a manual transmission into a 6th gen mercury cougar, which has the windsor. 1 answer
      Will this transmission hold 600 flywheel hp or 600 rwhp 1 answer
      For a 1990 LX, will the driveshaft length have to be changed when using the TKO600 in place of the stock T5? I understand the cross member, tailshaft yoke and clutch will be changed, but will the stock length driveshaft still fit? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Transmission

      Tech Specs

      Will It Fit My Mustang

      • Cobra - 93, 94, 95
      • Cobra R - 93, 95
      • GT - 94, 95
      • LX - 87, 88, 89, 90, 91, 92, 93
      • Other - 79, 80, 81, 82, 83, 84, 85, 86
      • V6 - 94, 95

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