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Ford Performance Tremec TKO 600 Extra HD 5-Speed Transmission; 0.82 5th Gear

Item 50575
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      Review & Installation Video

      If you want one of the most popular and maybe one of the most bulletproof five-speed transmissions out there for your Fox body, SN95, or retro mod build, the Tremec TKO 600 Extra HD will be the ticket. Now as the name suggests, the Tremec here will offer a torque holding capacity of 600 pound-feet while this particular trans, guys, will offer that slightly shorter 0.82 fifth-gear ratio compared to your other option currently on the site with a 0.68 fifth-gear ratio. Your price point for the Tremec here is gonna land right around 2500 to 2600 bucks and the site is gonna knock this one up to a full three out of three wrenches on the difficulty meter and about a day or so to get everything into place.So if you guys didn't know by now, Tremec builds some of the baddest transmissions in the game whether it be the 3650, the 6060, the TKO that we're talking about here, or, of course, that legendary T56 Magnum. It's really hard to go wrong rowing gears with a Tremec. Now the TKO series of transmissions is, again, one of the most widely used aftermarket five-speeds in the game and the reason for that is pretty simple, it's gonna be extremely versatile thanks to the numerous shifter mounting locations in addition to being able to use both cable and sensor-based speedo outputs. Finally, guys, this thing is gonna be about as tough as they come in the land of five-speeds. Now that strength is gonna come from a very stout build here from Tremec, guys, including the three-rail internal shifting mechanism, 26-Spline input shaft, along with that 31-Spline output shaft, cast iron shift forks in this puppy, and finally, a single piece countershaft and gear set, all manufactured from 4615 grade forged alloy steel. Now the trans here itself is gonna measure just north of 30-inches in length and gonna weigh in right around 100 pounds or so dry. Mind you, guys, that is without the bell housing attached or any of the extras needed for the installation. And that is a perfect time to segue into what is actually needed for your install and honestly, guys, a lot of it will depend on what you plan on dropping the Tremec into. But in a nutshell, you're obviously gonna need a bell housing specific to your engine setup, whether it be 5.0 based, 4.6, or 5.8, in addition to that 26-Spline clutch. Your crossmember is also something that will need to be addressed but, again, will be different depending on your gear, and then finally, the drive shaft will either need to be changed entirely or modified, again, depending on your model. For instance, some of you guys can even reuse your factory manual driveshaft but you'll either need to swap out the yoke or add a spacer. So again, just make sure you do your homework depending on what you plan on dropping this guy into. But one big thing to point out here, guys, with this particular TKO 600 is that it, again, features that 0.82 fifth-gear ratio and what does that mean? Well, currently we do have two options available here at AM with the TKO trans, the 0.82 which is currently sitting on my table along with the 0.68 fifth-gear which is also available for the same price. Now the 0.68 is gonna be more of your traditional overdrive, meaning you're gonna do a lot of highway cruising, you wanna save some gas, and you don't wanna turn a bunch of RPM, the 0.68 is probably gonna be the way to roll especially if you have a real steep gear in the rear like a 4.10 or something higher. Now, on the other hand, if you have a taller gear in the car like a numerically lower gear ratio or if you happen to road race your car a lot and you want all five gears to be usable, then I'd say the 0.82 that we have here would be that way to roll. Why? Well, there isn't gonna be as big of a drop from fourth-gear which is 1:1 to fifth which is gonna be that 0.82 meaning the car is gonna stay in the revs a little bit better in fifth-gear compared to the 0.68 option. You also have to keep in mind though, guys, that if you do go with this trans and its 0.82 fifth-gear ratio and you have a numerically higher gear in the rear end such as a 3.73, for instance, you are gonna be turning some higher RPM in fifth gear on the highway. So again, just something to think about before making your final decision.Install, again, will differ from car to car so let's just call it three out of three wrenches on the difficulty meter here to be on the safe side and I'd say a day or so to get everything in place. Fluid recommendations per Tremec include just over 2-1/2 quarts of either GM Synchromesh, Dexron III, or Mecron ATF or any comparable or approved aftermarket fluids from Amsoil, Red Line, or Royal Purple. So wrapping things up here, guys, if you're looking for a very tough five-speed to handle some hard shifts and a lot of power in your Fox, SN, or classic Mustang, be sure to consider the legendary Tremec TKO 600 right here at

      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 0.82
      • 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 0.82

      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

      MPN# M-7003-R58C

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (6)

      Write a Review

      Ratings Summary

      5.0 out of 5 overall rating from 6 customers

      Installation Time: Full Day

      • March 31, 2019

        5 1987 GT - ChrisS Installation Time: Weekend

        Best transmission

        I'm glad I went with this transmission. It holds the power of my hot 357w no problem and shifts smooth as butter.

        Helpful (1)
      • February 13, 2018

        5 1986 Other - RobertR Installation Time: Afternoon

        great upgrade

        had stock tranny in 86gt. This will help lay dowm my power upgrades while a rock through the gears.

        Helpful (15)
      • June 13, 2017

        5 1985 Other - Dylan03 Installation Time: Full Day

        TKO 600

        Couldn't go wrong a very well built trans an it arrived very quickly for such a big package

        Helpful (15)
      • June 10, 2017

        5 1991 GT - Michael


        Obviously if u have a mustang then you know tremec tko is a great trans. So nothing but what I expected from that. BUT I'm beyond impressed with how fast I got this transmission. I've bought a lot of parts for my build from this site and will continue to do so.

        Helpful (16)
      • May 29, 2015

        5 2000 GT - Kevin26 Installation Time: Full Day

        New edge Swap

        Swapped this trans in my new edge and couldn't be happier. Some say it doesn't shift great, but I can tell you it shifts great. After the break in period I really banged on it and WOW what a difference fron the t45..

        Helpful (18)
      • August 15, 2013

        5 1995 GT - cmill77 Installation Time: Full Day


        smooth shifting vary great pick up no vibrations ...

        Helpful (17)

      Questions & Answers (8 answers)

      5 Top Rated Questions

      Will this fit a 89 f150

      • 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. As well as the 4.6 with the correct Bellhousing however at this time it has not been tested in an F-150.

      Helpful (1)

      Does the Tremec trans need a new shifter or will the T5 also fit?

      whats the difference in the .68 and .82?

      • The .82 will offer better acceleration in 5th, the .68 will offer decreased RPMs and fuel consumption in fifth gear.

      Helpful (0)

      It says for the 94-95 it will need crossmember modifications. What modifications will be needed for it exactly?

      • To install the Ford Performance Tremec TKO 600 Extra HD 5-Speed Transmission in the 94-95 Mustang, the crossmember mounting bolts would need to be elongated to allow for a larger range of adjustment to properly line up the mount.

      Helpful (0)

      I have a 1986 Mustang SVO, with a World Class T5. The WC is old and tired, and needs a complete rebuild. I am considering a Tremac TKO as a replacement. Does Tremac have a transmission for this applieation. thanks for any help.

      • This Tremec TKO will fit any application with the proper bell housing and shifter.

      Helpful (0)
      Post Your Question
      3 More Questions
      I have a blowproof Lakewood steel housing for my SBF will this trannny bolt up to it, fit the mounting hole, use the same to brg.? I am not worrying obout anything else. 1 answer
      01 V6? Ive been told this can fit my 01 v6 if i can get a 31 spline driveshaft, is this true? 1 answer
      Fitment ? Will the ford racing 28 spline drive shaft fit? Will there need to be modifications? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Transmission

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