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A Affordable
Transmissions Center

Thornton Transmission Replacement Shop

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Automatic Transmission in Thornton

If you need a new transmission in Thornton, A-Affordable Transmissions Center is the place to go. Our locally owned and run business has been serving the residents of Thornton and the surrounding areas since 1979. Our highly trained technicians have years of experience replacing transmissions for vehicles of all makes and models, and they will use that knowledge to restore your car’s transmission to top performance.

Here at A-Affordable Transmissions Center, we know how important it is that your vehicle’s transmission is in good working order. Our dedication to excellence guarantees a smooth and dependable solution, whether you are experiencing transmission breakdown symptoms or are seeking preventative replacement.

Warning Signs of a Failing Transmission:

Your vehicle’s transmission is a vital component, and seeing early warning signs of breakdown is key for preventing costly repairs down the road. If you’re having transmission issues, including gears slipping or strange noises coming from your car, visit A-Affordable Transmissions Center in Thornton as soon as possible for experienced help. Don’t let transmission problems escalate—learn to spot the indications and treat them early for a smoother driving experience:

Transmission Slipping

Poor acceleration and erratic gear changes.

Rough Gear Shifting

Noises and jerky shifts into higher gears.

Fluid Leaks/Stains

New stains under the vehicle, notably red fluid, indicating a potential transmission fluid leak.

Odd Transmission Sounds

Driving or shifting noises that whine, clang, or thud.

It’s important to act quickly if you notice problems with your transmission. Get in touch with A-Affordable Transmissions Center in Thornton for an intensive diagnostic checkup performed by trained experts. Don’t ignore signs of trouble like slipping gears, hard shifting, or fluid leaks; fixing them early can save you money and time.

Make an appointment for servicing and be assured that our professionals will give you an honest evaluation and go over the work that needs to be done. If the symptoms are severe, your top priority should be getting to a safe place as soon as possible. Our knowledge and experience combined with your prompt attention to transmission problems will help keep your car running smoothly.

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To rebuild a transmission the following steps should be undertaken:

Diagnostic Inspection

Applying state-of-the-art diagnostic equipment to pinpoint transmission problems.

Transparent Estimates

Giving detailed written estimates for repairs and regular updates on the replacement’s progress.

On-Site Replacement

All maintenance and repairs will be handled in-house, at our Thornton facility.

Warranty Options

Providing a range of replacement work warranty options to provide customers with peace of mind.

If you need a transmission replacement in Thornton, CO, come to A-Affordable Transmissions Center for first-rate service, open lines of communication, and reasonable prices. Contact us immediately to arrange an appointment and protect the longevity of your vehicle’s transmission.

Why Choose A-Affordable Transmissions Center for Thornton Transmission Replacement?

Expertise and Specialization: Take advantage of our expert team’s familiarity with a wide range of transmission makes and models, allowing us to provide you with replacement services that are both personalized and exact.

Cost-Effective Solutions:
When it comes to saving money, we get it. Transmission replacement at A-Affordable Transmissions Center is available at reasonable prices without sacrificing quality.

Customer-Centric Approach:
Having happy customers is our number one goal. We help you through the replacement process, delivering transparent insights, thorough cost breakdowns, and a complete checklist of the necessary repairs.

On-Site Repairs:
All our replacement work is handled at our dedicated Thornton repair center, minimizing delays and additional expenses associated with outsourcing.

Transparent Communication:
We keep the lines of communication open and make sure you understand every step of the replacement procedure. Our open book policy allows you to watch the maintenance being done.

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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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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. Serving the entire Front Range since 1979. For all of your transmission needs in the greater Denver area, please contact us to schedule a quote.

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

All Makes and Models – Domestic and Import

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Service Area


Since 1979, we proudly serve North Denver, and the below Suburbs …

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Directions to A-Affordable
Transmission Center

A-Affordable Transmission Care Center proudly serves the Denver Metro Area with convenience at two locations, providing exceptional transmission services. Our first location, strategically positioned in South Denver, caters to the bustling energy of the city, ensuring easy accessibility for our valued customers. Meanwhile, our second location, situated in North Denver, extends our commitment to excellence, offering residents in that area the same reliable and expert transmission care. With both centers, we prioritize efficiency, quality, and customer satisfaction, delivering unparalleled transmission services to keep your vehicle running smoothly on the diverse roads of the Denver Metro Area.

Directions To A Affordable In Thornton

52nd & I25 to A Affordable Transmission Center Thornton

  • Head north on I-25 N - 1.4 mi
  • Keep right to stay on I-25 N - 1.7 mi
  • Take exit 219 toward 84th Ave - 0.2 mi
  • Keep left at the fork to continue toward 84th Ave - 240 ft
  • Use any lane to turn left onto 84th Ave - 0.3 mi
  • Continue onto 84th Ave Pass by Burger King (on the right) - 0.4 mi
  • Turn left onto Greenwood Blvd 
  • Destination will be on the left - 207 ft
  • A-Affordable Transmissions Center 780 W 84th Ave, Thornton, CO 80260

I36 & Wadsworth to A Affordable Transmission Center Thornton

  • Head southeast on US-36 E - 6.6 mi
  • Exit onto US-287 N/N Federal Blvd - 1.6 mi
  • Turn right onto W 84th Ave Pass by Advance Auto Parts - on the right in 1.5 mi
  • Turn right onto Greenwood Blvd
  • Destination will be on the left - 207 ft
  • A-Affordable Transmissions Center 780 W 84th Ave, Thornton, CO 80260
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Transmission Center

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