Specializing in Transmission &
Diesel Automotive Repair

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Roardunner Transmission and diesel

Roadrunner Transmission and Gear is a drivetrain specialist serving all of Denver with transmission and diesel automotive issues. With over 18+ years’ experience, we can help repair your transmission at affordable and fair prices. Don’t get duped, our honest team strives to earn your business and works hard to get your car or truck on the road at a fair and affordable price.

If you are experiencing problems related to your transmission, it is crucial to bring your car or truck to a trustworthy transmission specialist. If not fixed quickly and properly, the value of your will drop and there are potential significant safety issues as well.

We Specialize In:

Transmissions (automatic and standard)
Transaxles (automatic and standard)
Transfer cases
4×4’s
Differentials
Gears
Clutches
Hydraulics
Driveshafts
Axles
C.V. boots and shafts
Shifters
Electrical

We can also help you with your fleet services, and offer wholesale pricing for general automotive repair shops on carry-out units.

Here at Roadrunner Transmission & Diesel, we repair and provide transmission maintenance servers for all makes and models of vehicles. We also work on diesel transmission engines as well. Primarily serving Centennial, CO car owners with transmission repair needs, we also work with a variety of maintenance shops looking for a transmission specialist to work with.

We Service All Makes and Models

TRANSMISSION REPAIR

What can we do for you?

Transmission Repairs
Transmission Rebuild
New Transmissions
Diesel Transmissions
Clutch Repair
Transfer Cases
Differencials
Gears
Axles

TRANSMISSION REPAIR & RE-BUILD

Roadrunner Transmission & Diesel is a family owned and operated drivetrain specialist with nearly 20 years of experience. We handle all types of drivetrain complaints for Domestic, Japanese, European and Asian built models with repairs ranging from minor adjustments, preventative maintenance, complete rebuilds and overhauls, and even conversions.

Transmission Shop

Roadrunner Transmission repair service provides fast, prompt service for all of your transmission needs. The transmission system is one of the most important parts of an automobile. Keeping it in good working order is paramount to the life and safety of your car. Our team has become the trusted source for all automatic and diesel transmissions, for either a transmission re-build or replacement. No matter what type of car you have or how old it is, our professionals can help get your transmission back in good working order.

Transmission Repair Articles

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If you have ever been driving around town and noticed the sensation of your car shaking, there are some steps you can take before making a pit stop at a repair shop....

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Frequently Asked Questions

How do I know if my vehicle's transmission needs repair?

If you notice abrupt or rough gear shifts, delays in shifting, strange noises such as whining or clunking, fluid leaks under your parked car, a burning smell, or a dashboard warning light related to the transmission, these are clear indications that your transmission might need attention. Call the team at Roadrunner Transmission today for a diagnostics.

What are the common signs of transmission problems?

Common signs of transmission problems include rough or delayed shifting between gears, slipping gears where the engine revs but the vehicle doesn’t accelerate, unusual noises like grinding during gear changes, ad fluid leaks under the car are the major signs of transmission problems./div>

How long does a transmission repair typically take?

In general, minor repairs or adjustments might take a few hours to a day, while more complex overhauls could span several days or even a couple of weeks if there are significant issues that require specialized attention.

Risks of driving with a faulty transmission?

A faulty transmission can lead to erratic gear shifting, sudden loss of power, and difficulty maintaining speed, all of which increase the likelihood of accidents, especially in high-traffic or highway scenarios. Additionally, the strain caused by a malfunctioning transmission could result in further damage to the engine, potentially leading to expensive repairs.

How often should I have my diesel transmission fluid changed?

Typically, diesel transmission fluid should be changed every 30,000 to 60,000 miles to maintain its performance. Other factors that need to be considered include the vehicle’s make and model, driving conditions, and manufacturer recommendations.

What's the difference between rebuilding and replacing a diesel transmission?

A transmission re-build involves disassembling the existing transmission, inspecting each component for wear and damage, then replacing only the worn or faulty parts while reusing the salvageable ones. On the other hand, replacing a diesel transmission requires removing the old transmission unit and installing a brand new one. This approach is faster and might be suitable if the existing transmission is severely damaged or outdated.

What is a clutch in a car?

A clutch in a car is a mechanical component that facilitates the engagement and disengagement of power between the engine and the transmission. It allows the driver to shift gears and control the transfer of power from the engine to the wheels. The clutch consists of a clutch pedal, which the driver operates, a clutch disc, and a pressure plate.

Can I drive with a slipping clutch?

Driving with a slipping clutch is not recommended as it can lead to further damage to your vehicle’s transmission. A slipping clutch occurs when the clutch disc does not engage properly with the flywheel, resulting in power loss and reduced acceleration. If you are experiencing a slipping clutch it’s important to bring the vehicle to Roadrunner Transmission for an inspection.

Transmission re-buld or transmission replacement?

The decision between a transmission re-build and a transmission replacement depends on the extent of the damage and the cost-effectiveness of. A transmission rebuild is suitable for less severe issues and can be more budget friendly. A transmission replacement is recommended for more extensive damage or if the existing transmission is beyond repair.

Transmission Repair Centennial