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A Affordable
Transmissions Center

Manual Transmission Rebuild Services in Denver

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A-Affordable Transmissions Center serves the Denver Metro area. We repair and rebuild, four, five and six speed manual transmissions. This Manual transmission shop have been rebuilding manual transmissions for so long, we remember when three speeds were still in service regularly. We offer manual transmission repair services on all cars and trucks; all makes and models.

Find the best Denver manual transmission repair service right here. If you’ve noticed strange noises during gear changes, have had trouble engaging or disengaging the clutch, or are having any other difficulty with a manual transmission, our trained staff is here to help. We guarantee that your car will be repaired to factory specifications and be ready to hit the road as soon as possible thanks to our extensive list of services and our team of highly trained specialists. We are the go-to shop for manual transmission repair in Denver. Your gears will be shifting like new in no time!

Our South Denver Metro location is at 3485 S Zuni St, 80110 and our North Denver Metro Location is at 780 W 84th Ave, Thornton, CO 80260. Give us a call or email, we have the experience to properly diagnose, and we check your transmission.

Warning Signs of a Failing Manual Transmission

Your manual transmission is typically very dependable. Manual transmissions do require to be serviced at intervals. Reference your owner’s manual for maintenance recommendations. Modern cars are made with manual transmissions. Nothing is full proof. As sophisticated as these modern transmissions can be, errors can make those gearshifts considerably less smooth. When a manual transmission fails, you might 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 clutch slipping in most cases. Additionally, there might be a few seconds delay when you shift each gear.

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You may also noise a grind during the transition of a shift.

This is typically known as failed synchronizer. Synchronizers are a part inside your manual transmission. Synchronizers are what allows a gear selection to made smoothly. Worn or damaged synchronizers can lead to further damage if the synchronizers are pushed too far. While some of these problems might seem negligible in the moment, ignoring such issues could make the situation worse, decreasing the life of your manual transmission over time and increasing the costs to repair.

Quick Telltale Signs of Manual Transmission Problems

If you know what to look for, you can avoid more serious problems with your manual transmission. Here are some signs to keep an eye out for:

Grinding or Strange Noises

Strange noises during gear changes, such as grinding, whining, or clicking.

Difficulty Shifting Gears

Problems with the engagement or resistance of the gears when changing.

Clutch Slippage

When the clutch slips, the engine’s RPM rises while the vehicle’s speed remains constant.

Burning Smell

Overheating or clutch problems could account for a burnt smell.

Fluid Leaks

Transmission fluid leaks might cause puddles or stains under your car.

How Manual Transmissions Work

A manual transmissions internal rotating assemblies have many moving parts. Gears, bearings and synchronizers make up just a portion of the pieces inside a manual transmission. A manual transmissions gears are machined in a way that allows each gears tooth surface to mate very closely to each other. Each manual transmissions gears, has a certain number of teeth. The combined number of teeth on a mating set of gears determines the manual transmissions gears ratio.

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car gearbox and clutch cross section

When shifting a manual transmission, it takes multiple gears inside the manual transmission to get the end result.

Bearings support gears and shafts and allow the manual transmissions gears and shafts to turn smoothly. Synchronizers in a manual transmission are designed to stop the gears from spinning. Manual transmissions synchronizers also align the slider to a gear. When the gears stop spinning inside the manual transmission, the slider, which is moved when you shift by the shift fork inside the manual transmission, locks additional teeth on the gears side (whatever gear your shifting into). The manual transmissions gears assemble is now locked into the gears side teeth and you have completed your shift. When synchronizers fail, you may experience grinding or noises and a sensation in your manual transmission shifter handle during the transmissions shift transition to the next gears selection.

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Benefits of a Manual Transmission Rebuild

Even with the steep learning curve, manual transmissions have some pretty amazing benefits. Manual transmissions can be dramatically more fair in price as compared to an automatic transmission, this can come in handy when replacing or repairing a transmission. With less moving parts, manual transmissions require less maintenance in the long run than their automatic counterparts. Repairs can eventually add up on a automatic transmissions.

The most required repair on a manual transmission usually is clutch replacement which is typically a fraction of automatic transmission costs.

For those that absolutely love to drive, control can be another huge benefit for a manual transmission. Knowing the performance of your vehicle is in your hands can be quite exciting. While on the topic of performance, manual transmissions typically have less power loss, less weight and more acceleration. If you have any more questions regarding the benefits of a manual transmission or any other transmission repair service related questions, give the experts at A-Affordable Transmissions Center a call today! We look forward to helping you.

Common Manual Transmission Issues

Issues that can arise with manual transmissions include:

Worn Clutch

When the clutch disc wears down, shifting might become difficult.

Synchromesh Issues

Worn synchros can cause gears to grind, leading to jerky gear changes.

Transmission Fluid Issues

Shifting and lubrication might be affected by low or filthy transmission fluid.

Clutch Hydraulic System Problems

The pedals may feel spongy if there is air in the hydraulic system.

Why A-Affordable Transmissions Center for Manual Transmission Rebuild Services

A-Affordable Transmissions Center is one of the most highly respected manual transmission repair and transmission servicing centers 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. Rebuilt manual transmissions are done in house so you can expect educated answers to your questions and needs. We reuse the good parts and replace the bad. The parts that are bad can be bought, used, aftermarket new or OEM. We price it all three ways so you can choose.

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Choose us for our


Technicians on our staff have extensive experience fixing manual transmissions.

Quality Work

For long-lasting fixes, we only employ top-shelf replacement components.

Prompt Service

You can count on us to get you back on the road quickly thanks to our streamlined procedure.

You’ll get a complete checklist of everything that needs to be repaired as well as an estimate of what it will cost before any work begins.
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Diagnostic Process for Manual Transmission ReBuild

Our diagnostic procedure for manual transmissions includes a road test in addition to a comprehensive visual assessment. This aids in determining the precise nature of the problem.

Manual Transmission Services Offered

Our services encompass a wide range of manual transmission repairs, including:

Clutch Replacement

Repairing components that have worn, such as the clutch plate, release bearing, or pressure plate.

Transmission Repairs

Repairing broken synchros and faulty gear shifters.

Transmission Fluid Replacement

Making sure there’s enough oil and airflow.

Don’t leave the health and safety of your car up to chance. Call A-Affordable Transmissions Center today for complete Manual transmission repair. We are reliable, fast and honest. Our technicians each have a minimum of 10 years’ experience rebuilding manual transmissions. We service all types of manual transmissions.
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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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Tips for Maintaining a Healthy Manual Transmission

Here are some preventative measures you may take for your manual transmission's health:

Regular Maintenance

Make sure to change the oil and examine the car as recommended.

Smooth Shifting Techniques

Don’t use any brute force or aggression when changing gears.

Mindful Driving Habits

Changing gears should be done gently, without “riding” the clutch pedal.

Importance of Regular Maintenance for Manual Transmissions

Manual transmissions benefit greatly from preventative maintenance in terms of both longevity and avoiding expensive repairs.

The Manual Transmission Repair Process
We begin every repair with a comprehensive analysis of the problem at hand, then we set about fixing it in such a way as to bring back full functionality.

Choosing the Right Manual Transmission Repair Service
Expertise, reputation, and evaluations from previous clients are all things to look for in a repair firm.

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

Don’t leave the health and safety of your car up to chance - Call A-Affordable Transmissions Center.

Frequently Asked Questions about Manual Transmission Rebuild

How frequently do manual transmissions break down and require service?

Transmission repairs are necessary on a case-by-case basis, although regular servicing can extend its life.

What are the warnings that a problem exists with my manual Transmission?

The symptoms include grinding sounds, clutch slippage, trouble shifting, and fluid leaks.

When fixing a manual transmission, how long does it take?

The time needed to fix the problem varies depending on its severity.

What is the definition of a service that fixes or replaces manual transmissions?

To fix a manual transmission, one must either fix the underlying cause of the problem or replace the faulty parts.

How much does it usually cost to fix or replace a manual transmission?

It all depends on the level of damage, the cost of the necessary parts, and the time it takes to repair.

How long does it typically take to fix or replace a manual transmission?

The time it takes can range from a few hours to a whole day.

To what extent are manual transmission rebuilds different from replacements?

Transmissions can be repaired to fix particular problems or replaced entirely.

What regular causes for manual transmission service or replacement are there?

A faulty hydraulic clutch system, transmission fluid difficulties, and worn clutch and gear synchros.

Is it risky to keep driving if the manual transmission isn’t working?

If your manual transmission is acting up, driving it could make the problem much worse.

What preventative measures can I take to keep my manual transmission running smoothly for longer?

The life of your transmission can be lengthened with proper care, smooth shifting, and cautious driving.

What is the average lifespan of a manual transmission?

If you take good care of your manual transmission, it will last as long as your car does.

What are the advantages of having a professional fix or replace your manual transmission?

Hiring a pro will guarantee a proper diagnosis, high-caliber maintenance, and peak performance once again.

When repairing a manual transmission, what parts usually need to be replaced?

The clutch, gear synchros, and other associated parts are frequently changed.

To what extent might a broken manual transmission ruin my car?

A defective manual transmissio can put additional stress on the rest of the drivetrain, increasing the likelihood of failure elsewhere.

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Expert replacement, repair and installation services on all makes and models of Cars, trucks, and SUVs

Denver Metro Pro Since 1979. We proudly serve South Denver, North Denver, and the below Suburbs…

Our Locations

Denver / Englewood
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