A trusted name in transmission repair in the greater Houston area since 1976 - 6l80e

Circle D Transmission - Serving Houston since 1976 - A trusted name in transmission repair in the greater Houston area since 1976.
13706 Hempstead Road @ Fairbanks N. Houston Road
Houston, Texas 77040

Circle D Transmission will transform your 6L80e Transmission into a performance beast. Let us help you kick a$$ with your 6L80e!

  • CDT Custom Billet Parts
  • 2010 Shop Owned Camaro for R&D
  • Custom Tranny Tunes with HP Tuners
  • 35+ Years of Business

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Thank you so much for the quick, dependable service you all gave me on my car...

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, Houston

Dear Circle D, my deepest thanks for your care of my truck it the green GMC...

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, Iraq

Thanks a lot for the great customer service, I am so very happy with your professionalism and your patience...

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, Houston

Circle D is Your Source for 6L80e Transmission Modifications

Car enthusiasts who wish to gain the ultimate in performance transmission upgrades bring their 6L80e transmissions to Circle D. Whether you are a regular at the racetrack or just a driver who is passionate about their need for speed, we are here to take care of YOU! We are the trusted brand for all of your 6L80e needs - the end result is superior performance.


Since 1976, Circle D Transmission has been the source for automotive transmission repairs in Houston - now we ship all over the world. We are a family owned and operated business with a loyal and qualified staff that has maintained our quality of excellence. As a resource for all things transmission, we have made it our mission to provide excellent service with integrity, at an affordable price.

A 6L80e rebuild should be done by a knowledgeable technician who has the experience and professionalism needed to perform any and all work. Our service staff is well equipped to perform rebuilds to performance transmissions like a Camaro transmission or Corvette transmission. The 6L80e allows for better performance and horsepower, giving your vehicle the ultimate upgrade. The modifications we do include: 6L80e custom billet 4-5-6 hub shaft assembly and pack, upgraded 3-5-r and 2-6 clutch packs with nitride steels and added clutch capacity. We do this and so much more!

Better performance from your vehicles transmission is not just for the automotive buff, but also for the every day person. Therefore, we are able to provide transmission repairs and upgrades to makes from Toyota transmissions to a Ford transmission.

Whether you need transmission rebuilds, upgrades or repairs, Circle D is the paramount choice. Our standard of excellence was established in 1976, and it is a standard we strive to maintain to this day. Give us a call and let us help you with all of your transmission needs. Call Circle D Transmission today at 713-895-7019.


Featured Article:

Achieve Superior Performance with a 6L80e Upgrade


When it comes to a six speed transmission like the 6L80E, additional benefits can be gained over other transmissions by using a lower first gear to take off. This places a lower load on the engine to move the vehicle from a stop. This should also result in more fuel savings as well as livelier, more responsive performance.

Read More About Achieving Superior Performance with a 6L80e Upgrade

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Enhance The Performance Of Your Sports Car With A 6L80e Modification From Circle D

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Circle D Transmission  13706 Hempstead Road (@Fairbanks N. Houston)  Houston, Texas 77040
713-895-7019  Fax: 713-895-8010  info@circledtrans.com  Hours of Operation: M-F 7:30 am to 5:30 pm

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