Colorado Transmission & Diesel Specialists is locally owned & operated by professional technicians who have been in the business for over 25 years.



Colorado Transmission & Diesel Specialists is locally owned & operated by professional technicians who have been in the business for over 25 years. We strive to produce only the highest quality transmission repair available, by doing so we have gained the reputation of Honest, dependable, & affordable transmission repair & diesel performance in the local area that is second to none.

We utilize state of the art equipment to pinpoint problem areas within your vehicle. Rely on us to get your service and repairs right the first time, every time. We have extensive knowledge in automotive repair, transmission repair, diesel repair & diagnostics. We work on diesel engines too! We are committed to training seminars & training classes to better serve you & your family. One call does it all!



All of our technicians have earned an ASE MASTER Certification and complete 40+ hours of training every year and are as technologically advanced as the cars they work on.

ASE Certified

Our Specialties Include

We are your one stop Automotive and Transmission Shop specializing in complete auto care, vehicle maintenance, transmissions, electrical, diagnostic, and diesel upgrades located in Brighton Colorado, however we service customers in the entire Denver Metro and Front Range Colorado areas.

  • Free overall systems check

  • All automotive makes & models

  • Clutches, standards, differentials, street rods, classic cars & trucks

  • RV services & RV repairs!

  • High performance specialists

  • Free towing within the metro area

What our clients say

I am writing you this letter of appreciation to let you know how grateful we are for you to take time out of your Sunday to rescue us just east of Deer Trail, CO.

My wife and I didn't know anyone & was very worried & stressed about the situation we were in. I am so glad I had Doug helping us out. You made sure our Dodge truck was ready that Monday evening so we could head back home.
P .S. You guys are truly the best transmission & diesel mechanics I have ever been around just wish you were in Little Rock, AR.

C.A. & Jenn Smith

Just wanted to drop a line to say thank you. I am so glad my car did not need a transmission. I know now not to trust the franchises with there big advertising.

They wanted to charge me $2500.00 for my Dodge Intrepid and you guys charged me $175.00 for a sensor like you said let me check it out first the most expensive transmission you will pay for is the one you don't need.

Truly Grateful, Cynthia Garcia

My truck is working better than ever. After calling several tranny shops & getting the run around. You were right you gave me the best price, best warranty, & got my shift together. ROCK ON!!!!

Leo Rodell

I had my 1999 Dodge Truck worked on by Doug.

Kevin Todd



1021 Denver Avenue Fort Lupton, CO 80621



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Complete control over products allows us to ensure our customers receive the best quality prices and service.