Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $5,000 For Your Mustang! Enter daily!

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

Market Price $3,163.99 You Save 12% ($364.00)
Our Price


+ $99.00 Handling Fee with FREE Shipping

  • Item 50232

Will this fit your Vehicle?

In Stock Ships same business day.
Ship to: ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features, Video & Details

    • 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

    Review & Installation Video

    Review & Install Video

    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 -

    What's in the Box
    • (1) Transmission
    Installation Info
    Tech Specs
    Will it fit my Mustang?

    You Might Also Like

    Customer Photos

    More Products You Might Like

    Questions & Answers (14)

    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 (4)

    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??

    I have purchased the TREMEC TCCM 1899 aluminum bell housing, 31 spline aluminum driveshaft, Hays 450 11" Street 26 spline clutch for my 2000 Mustang GT Windsor upgrade. All of the parts are made for the Modular Mustang 4.6l. The AMERICAN MUSCLE website says the Extra HD TKO 600 0.68 5th gear won't fit in my car. Is this still true?

    What transmission fuild do you on TO 600?

    • For all TKO 5-speed models, TREMEC recommends GM Synchromesh™ or equivalent, or Mobil 1 Synthetic ATF.

    Helpful (0)

    i have a 1995 mustang gt what clutch fork do i need?

    • You will require the clutch fork E6ZZ-7515-A for a 1995 GT. This is linked below:

    Helpful (0)
    Post Your Question
    9 More Questions
    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
    Is there any clearance issues with the tunnel? And does the shifter end up in the stock location? 1 answer
    Is the final drive really .68? or is it .64 TKO500 comes with .68 5th gear and the TKO600 comes with a.64 5th gear. I'm guessing its just a typo more or less or. 3 answers

    Recommended For You

    Customer Reviews (8) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$1000+

    • Performance Gain 4.857143 4.9
    • Fit 5 5

    • 4/5

      Installation Time: Less than 1 Hour

      April 30, 2018

      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!


      Year: 1995 Submodel: GT

      Helpful (7)

    • 5/5

      February 13, 2018

      Derek’s tko600

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


      Year: 1995 Submodel: GT

      Helpful (10)

    • 5/5

      Installation Time: Full Day

      October 03, 2017


      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.


      Year: 1986 Submodel: Other

      Helpful (13)

    • 5/5

      September 13, 2016

      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 ..


      Year: 1990 Submodel: GT

      Helpful (12)

    • 5/5

      Installation Time: Afternoon

      December 14, 2015

      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.


      Year: Pre-79 Submodel: Other Marana, AZ

      Helpful (12)

    • 5/5

      Installation Time: Weekend

      March 23, 2014

      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.


      Year: 1987 Submodel: Other Phoenix, AZ, USA

      Helpful (11)

    • 5/5

      Installation Time: Afternoon

      December 22, 2012

      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


      Year: 1987 Submodel: GT Jacksonville, FL, USA

      Helpful (13)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $1000+

      May 26, 2012

      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


      Year: 1987 Submodel: GT FL

      Helpful (15)

    Related Mustang Categories