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A Affordable
Transmissions Center

Highlands Ranch, CO Transmission Repair Shop

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Automatic Transmission in Thornton

A-Affordable Transmissions Center is your one-stop shop for all your transmission repair needs in the Highlands Ranch area. We place a premium on the happiness of our customers. Our transmission repair facility is committed to doing excellent job in a timely fashion.

Call us anytime at 303-761-3333 or contact us via email. We take pride in all our transmission services and affordable pricing. Customer satisfaction is our main priority. Our shop is located at 3485 S Zuni St, 80110, and all services are performed at this location center- no middlemen. Our transmission shop performs clean, fast, and honest work

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car transmission in Sheridan

Automatic and Manual Transmission Repairs and Replacements

We have the expertise to service or replace your transmission, no matter if it is automatic or manual. To ensure that your transmission continues to function smoothly, we offer thorough diagnostics, quick repairs, and scheduled maintenance. Have faith in us to fix your shifting problems, gear sliding, and grinding noises.

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car transmission in Sheridan

Transmission Rebuild

Is it better to rebuild my transmission? How long will it take to rebuild my transmission? How much will it usually cost to rebuild my transmission versus replacing it? Our knowledgeable team of experts will help you make the right decision and offer you no nonsense advice to find the perfect solution.

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Automatic Transmission in Thornton

Our Transmission Repair Services

Our transmission repair services at A-Affordable Transmissions Center are second to none. All local and foreign makes and models are safe in the hands of our highly qualified experts. We have the know-how to fix any transmission problem, big or small, ensuring peak performance and reliability for years to come. Since 1979 A-Affordable Transmissions Center has been repairing manual transmissions. We offer car and truck manual transmission repair services. Give us a call for an estimate.

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car clutch

Clutch Replacement

Clutch replacement and repairs are quick, clean and affordable as long as they are done correctly. Our technicians have installed over ten thousand clutches at our clutch installation shops. Likewise, we have the best clutch installation prices in town. It is simply hard to beat us when it comes to quality work at affordable prices. Get the best service today!

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car transfer case

Transfer Case Specialists

Our technicians have rebuilt thousands of transfer cases; all wheel drive and four wheel drive transfer case systems are no problem for us. We understand how your 4×4 transfer case works, and all repairs will be done in house. No challenge is too big or too small for our expert team of professionals.

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car differential

Differential Repair

A-Affordable Transmissions Center is your one stop shop for all things front and rear differential. Our Differential Shop rebuilds the differential in your vehicle, and all Diff’s are rebuilt in house by highly skilled technicians.

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We Repair And Rebuild Transmissions Right For Less

It’s not cheap to fix a transmission, especially if you need to replace it entirely. Here at A-Affordable Transmissions Center, we have expert transmission rebuilders who can save you a tonne of money while restoring your vehicle’s transmission to like-new condition. We can rebuild the transmission already installed in your vehicle, saving you money over buying a new one. We only repair the necessary parts, unlike when purchasing a remanufactured transmission, and we provide a warranty on the entire transmission assembly. Call us at 303-761-3333 or send us an email to schedule your consultation.

Transmissions (and especially transmission repairs) can be expensive. Our transmission rebuilders know how to rebuild Automatic Transmissions, Manual Transmissions, CVT Transmissions and DCT Transmissions properly and keep the costs down. We perform all services on site and rebuild the transmission that is in the vehicle now, which has saved our customers from incurring unnecessary complete replacement costs. When buying a remanufactured or replacement transmission, you are buying transmission parts that you don’t need- many parts inside your transmission are good and can be reused at time of rebuild. We replace only the parts that are necessary and warranty the entire transmission assembly when we are done. Email us or Call at 303-761-3333 for a diagnostic for only $90, and if repairs are done with us the fee is waived.

When you visit our repair facility you can expect:

Different transmission rebuilds warranties and repair types to fit your need.

A transmission inspection including a road test, preliminary testing and electronic scan.

We provide written repair estimates so you can decide what to do.

No work will be done unless you approve of and fully understand the process.

Extreme transparency, no hidden anything. No pressure and no up selling.

We don’t just advertise that we are a transmission expert- We really know how transmissions work.

This is a real shop serving Highlands Ranch transmission repair. Thousands of transmissions have been rebuilt at our repair center.

Why A-Affordable Transmissions Center?

A-Affordable Transmissions Center is one of the most highly respected transmission repair and transmission servicing centers in all of Denver Colorado. We have rebuilt hundreds of transmissions for Highlands Ranch residents through the years. We take the time to walk every customer through the repairs process, and the initial inspection won’t cost you a cent. This is a real transmission shop, so you can expect educated answers to your questions and needs. You’ll get a complete checklist of everything that needs to be repaired as well as what it will cost before any work begins. Don’t leave the health and safety of your car up to chance. Call A-Affordable Transmissions Center today for complete Highlands Ranch transmission repair.

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The Automatic Transmission Rebuild Process

This process is very delicate as it involves the separation of the transmission from the engine and driveline. The transmission is then lowered from the vehicle and disassembled completely by our transmission technicians. It is a difficult and expensive process that should only be done by those who are exceptionally qualified. Failure to follow this process correctly can lead to even more damage to your transmission. Therefore, you need to ensure that your car problem is correctly diagnosed by a reputable mechanic shop than can advise you on what needs to be fixed.

Transmission rebuild is expensive, so it is essential that repairs are done right the first time with a repair shop that knows not only how to fix the problem but find the cause. Remember, the main goal here is to get your transmission back to a better working condition.


When it comes to transmission repair and maintenance in the Denver area, A-Affordable Transmissions Center is the place to go. We’ve rebuilt hundreds of transmissions for people in Highlands Ranch, and our skill is widely recognised. Every repair job begins with an examination that we provide to every customer. We are a genuine transmission business, thus we will address your issues and queries accordingly. As part of our dedication to honesty, we will provide you with a comprehensive list of all necessary repairs and their associated prices before any work is begun. If you need transmission repair in the Highlands Ranch area, come to A-Affordable Transmissions Center.

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Consequently, it is important to note that there are two categories of parts that need to be considered in the process of a transmission rebuild: the Soft Parts and Hard parts.

Soft Parts:

These parts form the Rebuild Kit which contains all parts that are prone to wearing out. By design they are expected to be replaced because they encounter a lot of friction and other shortcomings that make them last only for a certain period during the vehicle’s lifetime.

Hard Parts:

These parts are made of steel or aluminum and they can include anything from a complete transmission case to a solenoid. Often, they don’t need to be replaced but damaged or worn-out hard parts need to be considered during transmission rebuild.


In most cases, the transmission is repaired or rebuilt when one or more of the soft parts such as the bands and clutches have gone bad.

Often, the hard parts such as the gears don’t go bad and therefore, they are reused after a thorough inspection and cleaning. Soft parts have the tendency of wearing out in a group. Moreover, a transmission is very susceptible to debris thus when these soft parts stop functioning, the filters get filled up with debris that they cannot withstand. A more worrying situation is when the debris start going around in the system, it may end up damaging other soft parts.

Mechanics need to have a transmission rebuild kit containing all the necessary replacement parts in order to perform a rebuild. Different kits exist that may or may not include clutches, seals, bands, filters, modulator, gaskets, washers and O-rings. The kit you need depends on what parts need to be replaced in the transmission rebuild process. The type of kit we use is always chosen by the customer, and we provide warranties for all rebuild kit options.

Automatic transmission rebuild is a labor-intensive process that requires two types of labor; labor for rebuilding of the transmission and labor for the removal and reinstallation of the transmission.

Warning Signs of a Failed Transmission

black car

All modern cars are now made with computerized transmissions. Of course, nothing is full proof. As sophisticated as these modern transmissions can be, errors can make those gearshifts considerably less smooth. The check engine light is often one of the first telltale signs that your car is having trouble.

You might also notice some strange sounds or vibrations when something goes awry with your vehicle’s transmission. In other situations, your transmission might shift gears in unpredictable ways, resulting in uneven speeds and inconsistencies while driving. Your car may sound like it’s trying to go 100 miles per hour when it’s only traveling at 50, this is known as a transmission slipping in most cases. Additionally, there might be a few seconds delay when you shift from park to drive.

While some of these problems might seem negligible in the moment ignoring such issues could make the situation worse, resulting in decreased lifespan of your transmission and increased repair costs.

Transmission Slipping?

Does your vehicle feel like it is changes gears randomly while driving? Are you experiencing struggling or a lack of acceleration? These may be signs your transmission is slipping and needs to be looked at by a certified technician. Slipping of the transmission may be accompanied by a whining sound. Any of these symptoms may require your transmission be serviced.

Rough Gear Shifting?

Does your car feel like it has an irregular shift, or refusing to shift at all? Rough gear shifting can be a sign that your transmission is failing. You may hear a thud/clunk noise while attempting to shift gears as well. If your vehicle is experiencing these problems, it may be time to contact A-Affordable Transmissions Center

Transmission Fluid Leaks/Stains?

Noticing new fluid stains and/or leaks underneath your vehicle? The transmission is a closed system that should not leak fluid at all. Transmission fluid is typically pink/red in color but can sometimes appear brown. If you notice any new stains underneath your vehicle (especially a red-ish) stain, you should contact our local transmission services specialists.

Odd Transmission Sounds?

Whining, clunking, and thuds in your vehicle can be a sign your transmission is failing. Any new noises that your vehicle is making could be a sign of something serious like transmission failure. Our transmission shop is trained to notice all the sounds/signs of a transmission problem.

Transmission Warning Light?

Your vehicle may show various “warning lights” depending on specific you may be experiencing in addition to other symptoms. If your vehicle is slipping, shifting roughly, making odd noises or even has a warning light on, contact the transmission service specialists at A-Affordable Transmissions Center today.

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Use our A.I. to troubleshoot your transmission issues

Use our experimental A.I. powered by ChatGPT to troubleshoot your transmission issues! Please note this is EXPERIMENTAL only and should be followed up with diagnosis by our professional mechanics. Any feedback on this feature is welcome and appreciated!

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Call or email us; a transmission expert will answer your questions.

We work on all makes and models, transmissions, transfer cases, clutches and differentials.

Katelyn Scoma

These guys are SO great. Great job and a great price! My family and I (and even friends that I referred) drive an hour to come to them. They do great work and have excellent customer care! Even when it was closing time they were so kind and helpful, making sure I understood and was satisfied with everything, instead of just rushing me out the door. 100% recommend them!

Gay Vierra

If you have any transmission work needed you HAVE to bring it to A-Affordable Transmissions Center! Dave is the best!! He has worked on two of my cars and even diagnosed a non-transmission related problem!! He is one of the most reputable business owners I have worked with in a long time!! Choose A-Affordable and you won’t regret it!!

Seth Hughes

Hello, had the transmission in my 66 Ford Fairlane rebuilt in October 2021. Nearly 2 years later still working great no leaks shifts just as nice as it did when I picked it up. Great customer service after the rebuild would totally recommend.


Take your car here. If you have any transmission issues this is the absolute best transmission shop you will find in Denver. My cars transmission lost reverse gear, and had a slew of other issues going on internally that I didn’t even know about, requiring a complete transmission rebuild. Devin was absolutely phenomenal, and let me know everything that was happening during the entire service. These guys absolutely stand by their word, and work. The diagnostic is only $90. With 250k miles, I have a rebuilt engine with 50k miles on it, and now a new, rebuilt transmission. Flawless. Another 4×4 lives another day. Drives smoother than ever. Thank you guys!

Cody Dent

Brought my 08 pontiac grand prix for a rebuild of the transmission, car was done within two days of dropping it off and the price quoted was correct and affordable (for a transmission rebuild) the shop is very professional and knowledgeable also friendly and don’t make you feel dumb or belittle you for asking questions. Also check back in with you on their work a week or two later. Would definitely return to these guys for any transmission work I’ll need on any of my vehicles and will always recommend them to friends, family and anyone needing work done. Thank you guys!!

Eleanore Thayer

I can not rave enough about thus place. Randy and his team are fast, friendly, and KNOW what they are doing! I had my clutch replaced here after being less than happy with another company doing it twice and blowing it both times in two years… This team is transparent and care about the quality of their work. If you need transmission work or your clutch replaced, this is your company. They made my Subaru ready for the road and I couldn’t be happier! 10/10 tldr: use this company and you will be a happy camper

Frequently Asked Questions about A-Affordable Transmissions Center

What kinds of services does A-Affordable Transmissions Center provide?

Here at A-Affordable Transmissions Center, we service and repair both automatic and manual transmissions for a wide range of automobiles. We can also repair your transfer case, clutch, or differential.

In need of transmission service; how can I make an appointment?

Appointment setting is simple. We can be reached at 303-761-3333, or you can send an email. Our helpful staff will work with you to schedule an appointment that works for you.

Why should I choose
A-Affordable Transmissions Center over other service centers?

We’ve been transmission specialists since 1979, and we’re proud of our track record. We are experts in transmissions, and our trained staff will provide you with precise diagnoses, honest quotes, and friendly assistance.

Does your transmission repair services came with any sort of guarantee?

Depending on your specific demands, we do indeed provide a range of transmission rebuild guarantees. We guarantee your satisfaction with our work and will not leave you hanging.

Do you offer transmission diagnostics?

All of our transmission checks, including the preliminary tests and electronic scans, are available. The initial inspection only costs $90 for your diagnosis, and if repairs are done with us the fee is waived.  We can pinpoint the problem and give you a fair quote for repairs thanks to this preliminary examination.

Can I get a written estimate for the cost of repairs before you start?

We are a transparent organisation. Before beginning any repairs, we provide written estimates for you to examine and understand the extent of work and associated costs.

If my transmission is failing, how can I tell?

Rebuilding entails a thorough disassembly, replacement of worn parts, and reassembly to ensure optimal performance, while repair often targets specific concerns or components.

If my transmission is failing, how can I tell?

Keep an eye out for red flags including a blinking check engine light, unusual noises or vibrations, erratic gear changes, transmission sliding and fluid leaks/stains. Get your car checked up by our professionals if you see any of these warning signs.

Do you service all transmission makes and models?

Our experienced mechanics can fix any type of transmission, whether it’s automatic, manual, CVT, or DCT.

How long does it typically take to repair or rebuild a transmission?

The time necessary to repair or rebuild a transmission might vary with the nature and severity of the damage. When you bring your car in for inspection, our staff will give you a rough estimate of how long it will take.

If you are having transmission issues, what should you do?

Slipping, hard shifting, or strange noises could all be indicators of transmission trouble, so don’t put off taking your car in for an inspection. If these problems are ignored, they will only get worse, and the expense to fix them will rise.

Can I leave my car at your lot when you’re not open?

If you need to drop off your car at our shop at a time other than our normal business hours, please contact us so we can make special arrangements.

Feel free to call us at 303-761-3333 or send us an email if you have any further inquiries. If you need help with transmission repair, our qualified staff is available to help you.

All Makes and Models – Domestic and Import

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Our Service Area

Expert replacement, repair and installation services on all makes and models.

South Denver Metro Pro Since 1979. We proudly serve South Denver and these South Suburbs…

Highlands Ranch
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