Transmission Conversion and Accessories for your GM Transmission Conversion and Accessories for your Mopar Transmission Conversion and Accessories for your Ford American Powertrain American Powertrain
 
Return to the Home Page of American Powertrain Request A Quote on a ProFit Transmission System - Modern Overdrive Tremec TKO500, TKO600, T5, and T56 systems for 4-spd, 5-spd and 6-speed Conversions Although it's more fun to DRIVE IT, you can Speed Analyze your new Modern Overdrive Tremec TKO500, TKO600, T5, and T56 systems for 4-spd, 5-spd and 6-speed Conversions. SITE MAP Transmission Installers and Service Companies on Modern Overdrive Tremec TKO500, TKO600, T5, and T56 systems for 4-spd, 5-spd and 6-speed Conversions for your new System.  If you know a good Installer, please send them our way. Information about how to Place and Order, Shipping, Warranty, Returns, Policies, Etc. (Also see menu items for specific information) This website contains a lot of information and instructions on your transmission conversion from Tips and Tricks, to Installation Pictures and Instructions.  Should you need further help, our Customer Service Reps and Owners (Enthusiasts ourselves) are always here to help you 24/7.  Just call, write, or stop by!

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We welcome your comments regarding your experiences with us.

Send us a note HERE on what other products you think we should offer that you haven't seen here.  Or let us know of other interesting ideas that you think would benefit our family and friends that you'd like to see placed on our website.



An email from T. McMullen

Hey by the way we won our first car show. Just a small one but they
just love the car and all the items.

T. McMullen
Terry set his custom logo
into multiple items in his car, from door locks to
using on T-shirts.
Custom Shift Knobs
Terry blows away
his competition
with his custom graphics
Order Yours HERE
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Solutions@TriCitiesWebSolutions.com

An email from Mike Goad
1957 Chevy 210 4dr wagon

PURCHASED: American Powertrain Hydramax™ Hydraulic Clutch Kit
1957 Chevy 210 4dr wagon with HYDRAMAX Hydraulic Clutch Kit
My 1957 Chevy 210 4dr wagon has a ZZ502 BBC with Muncie 4 speed and your hydraulic clutch conversion kit. It works great and I waited too long to do it. 1957 Chevy 210 4dr wagon with HYDRAMAX Hydraulic Clutch Kit
1957 Chevy 210 4dr wagon with HYDRAMAX Hydraulic Clutch KitCar also has an Art Morrison front clip with power rack and pinion, coil over shocks, tubed A-frames and Welwood disc brakes with drilled rotors. The rear is a Currie 9" ford with 3.70 gears, 31 splined axles and Detroit locker and big drum brakes.

Mike Goad
1957 Chevy 210 4dr wagon with HYDRAMAX Hydraulic Clutch Kit


An email from Gregory Harrelson
1966 Chevelle, 454, 550 hp, ProFit TKO600, 3.73 Rear Ratio
1966 Chevelle 5-Speed Tremec TKO

1966 Chevelle 5-Speed Tremec TKO
I would like to take the time to thank you for all of you assistance and expertise with my purchase and installation of my new Tremec 5 speed. Your confidence in this product was only exceeded by the outstanding performance of this application. Paul, you made this whole process seamless and you carried out every facet of this sale from unit delivery to technical support - a thing of organizational beauty and smoothness.

I would wholeheartedly advise any muscle car enthusiast to truly consider the Tremec Transmission because of it's increased economy, strength, durability, and cruiseability over all other applications. I found that having 21st century engine, suspension, and differential upgrades and using a 46 year old Muncie made no performance sense. After installing the Tremec, I questioned myself of why I waited so long because nothing compares with the way that this car operates and performs now, from idle to stomp down and go.

I understand some enthusiasts need for originality but if you can heighten the fun and enjoyability that you will have with a Tremec Trans, it is something that should be really considered. If that consideration turns into a real plan to purchase one of this special units, please use American Powertrain for your company of choice because the reps (especially Paul Unterstein) will stand beside you all the way through the process while the company will stand behind the whole experience.
Thanks again.
Gregory


An email from David Earler
55 Chevy, 327, 400hp, 3.70 diff, ProFit TKO600
55 Chevy, 327, 400hp, 3.70 diff, ProFit TKO600
Power Tour was a great time. The car was very well received by spectators and Hot Rod Magazine and Hot Rod TV. DF photographed it and Rob Kinnan also did a shoot on it. Jerry Pit had HRTV do a shoot on it and they interviewed me. Oh yeah 80 mph was a comfortable 2300 rpm. Gotta love American Powertrain!

David Earle

An email from R. Guido
600Extreme, ProGrip ProTwin Clutch

Well I went for a couple of drives, everything seems excellent, the clutch is really good, no chattering at all, very easy to drive. The trans shifts very nice for being brand new, I am already loving the ,64 overdrive… Day two was excellent, I have almost 200miles on it already.....can't wait to try it at the track!!

R. Guido

An email from C. Chippie

Gray, the install went great and I could not be happier with the TREMEC that I installed. The car hit the road for the first time on Fathers Day and it was great. The engine RPM @ 70 MPH was 1800; what an improvement.

Thank You Very Much
C. Chippie

An email from T. McMullen
(Custom Designed/Graphic Arts Shift Knob)
Tina,
 
You and your company have done an outstanding job. The project was not very big but you went out of your way to make me happy. I will be very pleased to recommend you to those who ask about the product and who help make in successful. If you would mail me a few business cards I will keep them in my car and when people ask I would be more then happy to hand them out. As soon as I get Bruce to finish up the window knobs we will start back on the console. I will make sure when we are done you get a pic for your scrap book.
 
 
Thank you
 
T. McMullen


An email from Michelle & Johnny H., North Carolina (TKO600)
Dear Gray Fredrick,

I can't begin to thank you enough for the fantastic and speedy service that you extended out to me and my husband when purchasing the transmission for our 69 Mustang. It was by far that smoothest transaction I have ever made and your knowledge and expertise made our decision that much easier. Thanks again so much. Michelle & Johnny H.

An email from J. Garfield, North Carolina

Mr. Hall,
The 5-speed is magnificent!!!  My car behaves as if it had been waiting for it.--Quicker off the mark, cooler running engine, lower rpms, handles like a much smaller and lighter roadster.  You've installed the speed-shift spring for 3rd and 4th gears.--I like it.  The last time I wrote to you, I told you of the 24.1 mpg I experienced driving from Gary's shop to my home in Asheville.--It has gotten better with my highest recorded mpg being 28.2 (The overall average for that 260-mile trip from Asheville to Fort Bragg was 27.8 mpg.)   The trip from Fort Bragg to Asheville is along gentle uphill roads with the steepest hill being Old Fort Mountain.--On good (i.e., ideal) days with the GM Turbo 3-speed Automatic, my mpg would be in the 18.5 to 19.3 range using 13.0 gallons.  On my 16 February trip to Asheville with the TKO500, I used 9.9 gallons.  I habitually travel at the established speed limits.

Most sincerely,

Jeff Garfield.
Happy Life with 5-speed


An email from Bob Hage
68 Camaro Super Sport, 396 Big Block, 375HP, ProFit TKO600.64, 12-Bolt, 3.55 ratio, OE Console
68 Camaro Super Sport, 396 Big Block

Hey Gray, Here is a picture of my 68 Camaro. It is a 396/375 SS. I drive it even more now that I have that 5th gear working for me. (:-) I love the Tremec TKO 5-speed I got from American Powertrain. It has performed great. I must tell you, though, what I was really looking for was someone I could count on if needed. Since I was putting the five speed in myself, that was an important factor in my decision. I have to say, I was not disappointed with the commitment you made at the time of sale. Every time I called, I always got an answer. A couple of those times were on the weekend and in the evenings. You have not disappointed my expectations at all. If anything you have exceeded them. Thanks again for a great product, and even more, someone there if needed! Bob Hage


An email from Steve Engberg 1969 Mustang, Boss 429, 800HP, Console, Ford 9”, 3.91 Ratio

1969 Mustang, Boss 429, 800HP, ProFit TREMEC TKO600.64
Gray, I want to thank you for a great product. Every part was perfectly matched to create an easy to drive car. I would highly recommend your company to anyone with a 5 or 6-speed in mind. Steve Engberg


An email from Frank Oliveto
1953 Studebaker, La Carrera Panamericana car.
1953 Studebaker, La Carrera Panamericana car. American Powertrain prepped 5-Speed Tremec TKO

1953 Studebaker, La Carrera Panamericana car.  American Powertrain prepped 5-Speed Tremec TKO performed flawlessly throughout 7 day race.  Helge Nyland and Chris Cochrane were the pilot and navigator in the grueling rally and are getting in shape for next year’s race. Frank Oliveto

An email from a Vendor "Help, need money fast! Going on vacation!"
Robert,
  Just a quick note to thank you. Thank you for going above and beyond for the effort you put in to my problem. I commend you and Tina for the extra effort. I am proud of being a client and business partner of your Company. Excellent job done very well! My kids also thank you and Tina.
 
A Friend for life! 
Thanks from the deepest of my heart,
S. M.

An email from Ian C.
United Kingdom


Hi Tina

First of all let me thank all for the first class customer service. Everyone has been courteous, prompt and helpful beyond expectations. I look forward to future business with you and recommend you to all.

I have now driven a few miles, some "enthusiastically" using the performance (but within the speed limits officer.....!!).  Overall, I am extremely pleased with the improved driving experience as well, top marks.

Regards,

Ian C

TKO600 Transmission Conversion Kit for 1973 Challenger

November 20, 2007

Dear Gray,

First let me thank you for caring about the product you're selling me and explaining which transmission would be best suited for my application.

I will say at first, spending this kind of money on a transmission is a huge expenditure for me.  But because of your knowledge and customer service this is why I went for what seems to be the perfect fit for the Challenger.  I'm awaiting my parts and transmission.  It will be a few months before I can recover monetarily and have the kit installed into the car but believe me I can hardly wait.  I will keep you updated on the progress of the car, as soon as it is installed for a final progress report.

What made me purchase the kit from you is the customer service that you gave me and without that I would have probably gone somewhere else.  You were also able to shave quite a bit of the price which also was a determining factor.  If all goes well, I will tell everyone I know to call you for the kit.  May you and your Family have a happy and safe Holiday season.

A true muscle car & MOPAR Enthusiast

Sincerely

D. C. Dillman



XJS 5-speed
An email from Jeff

Gentlemen: THANK YOU.

I truly appreciate the reception, conversations, getting me to the hotel, and all the great, hard work in installing the 5-speed. 

Guys, the trip to Asheville was great.--'Like driving a new sports car!  Once I entered Highway 40, I remained in 5th until exiting on Asheville's Highway 240 Loop.  Of course the RPMs were down compared to the automatic's top gear and the temperature guage rested above "C" but well below "N", so the engine was running cooler.  The car felt more maneuverable.  I really enjoyed the 115-mile drive.

Most respectfully,

Jeff.


Your loyal customer.

An email from Scott M.

Monday, July 23, 2007

Robert,
  Thanks for the GREAT product! My car  handles much better. Greatest modification to date!
  
Scott M.


An email from Fawaz in Mississauga, Ontario, Canada

Tuesday, April 11, 2006 12:02 PM

Hi Tina,

Thanks great, I look forward to receiving the part soon. Thanks so much for you courteous, quick response and the help with finding a cheap shipping solution. Robert was very helpful with informing me about the product. The attention I received for such a low ticket item makes this one of the most pleasant experiences I have had dealing with any company. I look forward to dealing with you in the future.

Thanks,
Fawaz A.






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American Powertrain, a division of The Driven Man, LLC, is a proud authorized distributor for Transmission Technology Corporation, maker of world famous TREMEC manual transmissions.

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