What Goes Into a Transmission Rebuild?

By Mister Transmission

What Goes Into a Transmission Rebuild

The transmission rebuild is a specific kind of transmission repair. For many transmission problems, the necessary solution is a relatively simple one. Maybe a change of transmission fluid or switching out a solenoid pack. Unfortunately, however, not all transmission jobs can be done so swiftly. Sometimes, a transmission rebuild will be necessary. So what goes into a transmission rebuild?

Transmission repair

As mentioned above, the transmission rebuild is one of only many types of transmission repairs. It is also the most involved type of transmission repair. It’s a type of repair that is not meant to fix every problem. Many problems do not require such an endeavour. A transmission rebuild is necessary either when the cause of a transmission problem cannot be accurately identified or when the damage that a transmission has incurred is total or at least far reaching.

Transmission rebuilds

The first step in a transmission rebuild is the complete removal of the transmission from the body of the vehicle. This is necessary when the part that is thought to be causing the problem is not accessible while the transmission remains within the body of the automobile. When the suspected problematic part is replaced, this might solve the problem. However not all problems are solved so easily.

In some cases a complete rebuild is required. A complete rebuild consists of the removal and disassembly of the transmission in its entirety. Every part is inspected for wear and damage, and then it is cleaned in a special cleaning solution, or it is replaced with another part depending on its condition. Parts that have friction surfaces, such as bands and clutches, are replaced as are all seals and gaskets. The torque converter should also be replaced, often with a re-manufactured one.

Technicians will also check technical service bulletins to see if the auto manufacturer recommends any modifications to correct design flaws that were discovered after the transmission was built. Automobile manufacturers often make upgrade kits available to transmission shops to resolve these design defects.

As you can see, the transmission rebuild is a significant undertaking and takes hours of labour to complete. But it is a holistic approach; any problems your transmission has been experiencing are bound to be addressed through this process. The transmission rebuild should add a number of years on to the life of your transmission.

Rebuild or overhaul

You may have heard of transmission overhauls before. If so, you’re probably asking yourself what the difference is between a transmission rebuild and a transmission overhaul is? Well, that’s a simple question to answer. A transmission rebuild is a transmission overhaul; they mean the same thing.

If your transmission requires a rebuild, you have two options. The first is to remove your existing transmission and rebuild it, then put the rebuilt unit back in your car. The second option is to replace your existing unit with another unit that has already been rebuilt or re-manufactured.

However, used transmissions often have questionable histories that could create a whole new slew of issues. New transmissions, meanwhile, are mostly aftermarket transmissions billed as new but are in fact rebuilt transmissions with new parts.

Contact us

If you have any questions about transmission rebuilds or would like to bring your vehicle in for a transmission repair or maintenance, please contact us today and we’d be happy to help you out.

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Customer Reviews
Called to book an appointment...
Jack M.
Called to book an appointment few days prior, I came in with the part and needed a seized bolt removed, possibly drilled and tapped. They got to it the next day, and only charged me 1 hour of labour. Very pleased and will be returning for major transmission work in the future. Highly recommend them. (Toyota Tundra 2012)
Date: March 18, 2026
Website: Google
Great service, even a free...
Dappa 1112
Great service, even a free diagnostic. I’d give them 6 stars if I could
Date: March 17, 2026
Website: Google
I recently had my vehicle...
Magesh Pillay
I recently had my vehicle serviced at Mr. Transmission in Red Deer, and I can’t recommend them highly enough. From start to finish, the experience was seamless and professional.Here are a few reasons why they stand out:Communication: Their updates were both on time and accurate. I never had to wonder about the status of my repair; they kept me informed every step of the way.Expert Advice: They provided great, honest advice that actually felt tailored to my situation rather than just a sales pitch.Pricing: The costs were very effective and fair. It’s refreshing to find a shop that balances high-quality work with competitive pricing.Customer Service: The team was incredibly friendly and easy to deal with. They made what is usually a stressful situation much more manageable.I will definitely be returning for any future needs and highly recommend them to anyone in the Red Deer area looking for reliable, transparent, and friendly service.
Date: March 17, 2026
Website: Google
serviced my ol' domestic x-over....
J. S.
serviced my ol' domestic x-over. made me read up on the matter. got to appreciate the complexity of hydraulics & kinetics involved in the transmission system. these gents parent-&-son can listen, relate/empathize, perform & deliver. doing the replacement itself is extremely tedious. a personalized approach they both do. Ken, an ex-aviator hobbyist, & his son Chris, a hands-on specialist, are like 2 gears in synchrony (some comments are a bit mean). read the way they reply to the negatives - tells me their character. professionals. Merci!
Date: March 17, 2026
Website: Google
Excellent establishment with exceptional employees.
Don King
Excellent establishment with exceptional employees.
Date: March 17, 2026
Website: Google
Well I didn't expect the...
Jim Harvey
Well I didn't expect the amazing service I got when I went to Mr Transmission. I explained my issue to Julie at the front counter and she got a technician from the back named Mike to help me. He fixed the problem within minutes and was very knowledgeable. I will definitely return here if I need help to see Julie and Mike. Well done guys. I would recommend this location at Walker and Tecumseh to anyone.
Date: March 17, 2026
Website: Google
I've already had good service...
Daniel Johnson
I've already had good service here. I've dealt here for over ten years and the quality of the work and service is always good
Date: March 17, 2026
Website: Google
Took my truck in for...
Erika
Took my truck in for a transmission repair and the team was able to get me in really quickly, in less than a week. They had a unit on the shelf and saved my Christmas trip! Big shout out to the entire team for their amazing customer service, they kept me informed throughout the whole process. Love my truck!
Date: March 17, 2026
Website: Google
I take my car to...
Tia Grills
I take my car to Brad first, every single time. Brad has saved me so much grief, time, and money. I earnestly recommend this business to all of my friends and family. Now I would like to recommend them to the strangers of Google. Do yourself a favour and come here. Brad has eloquently frankensteined my car that would’ve been put down a while ago without him. Thank you Brad!
Date: March 17, 2026
Website: Google
Honest and trustworthy also great...
Shaun Gracie
Honest and trustworthy also great prices.
Date: March 17, 2026
Website: Google
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