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A Affordable
Transmissions Center
Transmission Replacement Services
in Denver
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Automatic Transmission in Thornton

Transmission Replacement Shop

We here at A Affordable transmission replacement shop know how important it is to have a working transmission in your car. We have several options to fix transmission problems and get your car back on the road in no time. Our transmission specialists are dedicated to helping you save both time and money.

Transmission replacements are performed to save you time. We rebuild your original transmission in most cases. When we have a replacement transmission in stock, we will offer to install it, to save the time needed to rebuild your original. Your original transmission will be rebuilt at a later time and installed into someone’s car or truck in the future. We will disassemble your original transmission to find what is damaged and to determine a cost. You will receive credit for what is reusable inside your original transmission and only be charged for what needs to be replaced. Rebuilds are performed on site at our repair facilities. All necessary updates are installed during the transmission rebuild process. For many years we have performed transmission replacement & rebuild and understand what it takes to make your transmission work like new.

There is never a hassle at our transmission replacement shop if repairs are not authorized. You will receive straight answers from real transmission experts. Please let us know what it will take to earn your business.

Our transmission experts have the know-how to restore your transmission’s original performance. Our crew is reliable, providing precise evaluations, honest responses, and speedy fixes.

Denver Metro Area call or email us.

How to choose the right transmission replacement shop?

Here are a couple tips …. if the shop that you are considering doesn’t have the word “Transmission” as part of the business name, it is likely they are not a real transmission shop and a general auto mechanic instead. If a repair shop suggests that it is better to replace your transmission instead of rebuilding or repairing the original transmission. Odds are they don’t have the expertise to rebuild your original transmission. If you are looking for a shop that is a transmission specialist, remember these helpful tips.

car mechanic examining car transmission for repair
car transfer case removed for car repair

When should you replace your transmission?

Simply put… NEVER. It is always best and costs less to repair or rebuild your original transmission. Even in a situation when a transmission has a broken housing for example, many parts inside the original transmission will be good and can be reused again. When replacing your whole transmission with a reman you are buying parts and pieces that you don’t need and already own inside your original transmission that never fail.

How much does it cost to replace my transmission?

When buying a replacement/remanufactured transmission you are buying many transmission parts to make a complete replacement transmission assembly. At A-Affordable Transmissions Center we give you credit for what is good inside your original transmission and only replace the transmission parts that are worn and damaged. Even when we install one of our “Remanufactured” transmissions that we have in stock into a car or truck, the customer receives credit for the good parts inside the original transmission.

Repairing or rebuilding your existing transmission is typically less expensive than buying a new one. Many sections of the original transmission are still serviceable even if some of its individual components have been damaged. Buying new components that you already have will be wasted if you replace the whole unit.

Sheridan car mechanic checking a car transfer case
car mechanic fixing a car under

Does A-Affordable Transmissions Center sell remanufactured transmissions?

Your original transmission is disassembled and an internal inspection is performed to determine what is good and what needs to be replaced. We then determine a accurate cost to rebuild/remanufacture/overhaul your original transmission to the latest industry standards. When we have a remanufactured transmission in stock for your auto, we only will install one of our remanufactured transmissions to speed up the repair process for the customer, to get the vehicle back to our client as promptly as possible, with the customers approval of course.

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Rebuilt vs Remanufactured, which is better?

Here are some things to consider… remanufactured transmissions typically cost more. When a transmission is remanufactured, in most cases several technicians are rebuilding individual components of the transmission, increasing labor costs of assembly. Each technician is focused on one portion of the transmission’s internal parts and then in the end the transmission is assembled by one person. I am sure you have heard of the phrase “too many cooks in the kitchen”, well more cooks more margin for error. When you rebuild your original transmission, you have one or two technicians working on your car or truck. Technician has a personal attachment to the job because they see it from beginning to end. The technician sees the customer and the vehicle and has a direct feel and personal attachment to what needs to be done to make sure the vehicle operates properly after completion of repairs. A technician tests the vehicle before the transmission is removed and then after repair, installs the transmission. Once the transmission is installed the technicians test the auto, to make certain the transmission functions correctly after completion of repairs.

Why A-Affordable Transmissions Center

When replacing a transmission, we prioritize speed and accuracy. We can save you money by rebuilding your existing transmission. We can offer to install a new transmission in place of a rebuild if we have one in stock. To determine the extent of the damage, we will carefully disassemble your original transmission, at no cost to you except for the cost of any required replacement parts. The rebuild procedure includes all required upgrades, guaranteeing top performance.

A-Affordable Transmissions Center is one of the most highly respected transmission replacement and transmission servicing shops in all of Denver, Colorado. We take the time to walk every customer through the repairs process. The initial inspection only costs $90 for your diagnosis, and if repairs are done with us the fee is waived. We are a real transmission shop, so you can expect educated answers to your questions.

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Since 1979, we've been one of the best places to get your transmission fixed or replaced in Denver. Here at A-Affordable Transmissions, we provide:

Comprehensive Inspections:

We will explain any problems in detail.

Educated Answers:

Since we are a legitimate transmission repair facility, we will provide you with accurate information.

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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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Warning Signs of a Failed Transmission

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, decreasing the life of your transmission over time and increasing the costs to repair.

Expert replacement, repair and installation services on all makes and models. Proudly Serving Colorado Since 1979.
Expert replacement, repair and installation services on all makes and models. Proudly Serving Colorado Since 1979.

You can trust A-Affordable Transmissions Center to replace, repair, and install transmissions of any make or model. Asserting Colorado’s satisfaction since 1979. For all of your transmission needs in the greater Denver area, please contact us immediately. To ensure you are happy with our service.

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

Transmission Replacement Services Frequently Asked Questions

What is transmission replacement?

To replace a transmission, the old one must be taken out of your car and a new one installed in its place. The technique is designed to quickly and effectively fix major transmission problems.

Why choose transmission replacement over repair?

Transmission replacement can be faster than rebuilding in some circumstances. However, we look at each case separately to determine the best possible course of action to take. We want your transmission to work as well as possible.

What happens during a transmission rebuild?

During a transmission rebuild, our mechanics will take apart your existing transmission to replace any worn or broken parts. Then, we just change out what needs to be changed, keeping anything that can be used again. The rebuilt transmission is tested extensively to guarantee it operates as well as the original.

When should I consider transmission replacement?

Replacement of the transmission should be considered a drastic measure. If the transmission is significantly broken or restoring it is not cost-effective, then replacement should be considered. We can save you a lot of money by rebuilding your already-existing transmission.

How much does transmission replacement cost?

Transmission replacement costs can range from several hundred dollars to several thousand, depending on your vehicle’s model and the transmission you select. After carefully evaluating your vehicle’s individual requirements, we then provide accurate pricing estimates. Our top priority is to keep repair prices low without sacrificing quality.

Does A-Affordable Transmissions Center offer remanufactured transmissions?

We do, in fact, sell reconditioned transmissions. In cases when we have one in stock that is a perfect fit for your car, we may suggest using it to speed up the repair procedure if you give us the go-ahead. However, we always give you credit for the parts of your original transmission that can be used again.

What’s the difference between a rebuilt and a remanufactured transmission?

One or two specialists will disassemble the transmission and make the necessary repairs so that it may be rebuilt. A remanufactured transmission, on the other hand, requires different professionals to operate on separate parts, which might drive up the price. We suggest the solution that fits your requirements the best.

Why should I choose A-Affordable Transmissions Center for transmission replacement?

Since 1979, we have been the go-to company for transmission services in the Denver area. Our professionals inspect everything, provide insightful feedback, and fix things quickly and effectively. We place a premium on client happiness and provide honest, low-priced options.

What are the warning signs of a failing transmission?

Symptoms of transmission problems include the check engine light turning on, the transmission making strange noises or vibrating excessively, the gears shifting erratically, the vehicle speeding up excessively, and the transmission sliding (revving excessively without a corresponding rise in speed). Have your transmission checked out as soon as possible if you see any of these signs.

How can I contact A-Affordable Transmissions Center for transmission replacement services?

Call us at 303-761-3333 for the South Denver location or 303-650-8126 for the North Denver Metro area location or write to us at aaffordabletransmissions@gmail.com. Don’t wait to contact us if you’re in the Denver area and looking for transmission services. Whatever transmission help you require, we’re here to provide it.

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