How Do You Rebuild A Transmission?

September 30, 2020 | By Mister Transmission

How Do You Rebuild A Transmission?

The decision to rebuild a transmission is not to be taken lightly. While a fascinating process, rebuilding a transmission is not a quick fix. It should only be undertaken when absolutely necessary.

The Majority Of Transmission Problems Are Relatively Minor And Do Not Require A Transmission Rebuild.

Just as you don’t require surgery for a head cold, your transmission won’t need a rebuild for most of the issues it’s likely to face. There are so many problems caused by a lack of transmission fluid that it’s almost comical. That’s all the more reason to check your transmission fluid levels every month and top them up when necessary. Newer transmissions are computerized, which makes them run more efficiently, but does add something else that can go wrong. Top of the line transmission shops have technology that can interface with a vehicle’s onboard computer which allows for quick diagnoses and fixes.

Occasionally, parts of your transmission will probably have to be replaced. But don’t fret, this is not the end of the world. Often, parts that need to be replaced can be accessed while the transmission is still in the body of the vehicle. These are referred to as accessible parts. When an inaccessible part needs to be repaired, then we get into larger transmission repair jobs. But even in these cases, if the problematic part can be easily identified it can still be a relatively quick job. Then there are transmission rebuilds.

You Only Need To Rebuild A Transmission When There Is Extensive Damage Or If The Transmission Technicians Cannot Identify The Cause Of Your Transmission Problem.

Extensive damage or a complete transmission failure can necessitate a transmission rebuild. This involves removing the transmission from the chassis and examining each and every part for damage. Depending on its condition, each part is then cleaned in a special solution or replaced with another part. Parts that have friction surfaces, such as bands and clutches, are replaced regardless, as are all seals and gaskets and the torque converter.

Is It Better To Rebuild A Transmission Or Replace It Piece-By-Piece?

If the description above makes rebuilding a transmission sound labour intensive, that’s because it is. Wouldn’t it be much quicker and easier to simply replace the transmission with another one? It would but, in most scenarios, we advise against it. You would be replacing your transmission with a used one with an unknown provenance which could create a whole new set of problems. And “new transmissions” are extremely expensive compared to a rebuilt transmission.

Mister Transmission

Want to learn more about how we rebuild a transmission? Please contact us.

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Customer Reviews
Cordial and friendly staff good...
Carlo Tonon
Cordial and friendly staff good follow up!
Date: March 30, 2026
Website: Google
What can I say about...
Robert Boem
What can I say about this place that hasn't been said already in the reviews.I took my 2019 nissan rogue in thinking it was a transmission problem.Giorgio and I went for a test drive and he honestly didn't think it was a tranny problem. He gave me a couple of recommendations to try before I bring it in for an appointment. Hard to find an honest mechanic these days. Thanks so much Giorgio I will definitely be back to see you if the problem doesn't get resolved.
Date: March 30, 2026
Website: Google
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Langis
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Date: March 28, 2026
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No.1 on my list
Langis
No.1 on my list
Date: March 28, 2026
Website: Google
Our old truck started making...
Jennifer Walker
Our old truck started making a loud noise near their shop. Glad it did. The staff were great. They put it up on the hoist and showed my husband the issues. We had some hiccups, it being an old vehicle. But the communication while they worked in it was great. We are very happy with their service. Will be back for future transmission issues with this old pickup.
Date: March 28, 2026
Website: Google
We had our transmission go...
Matthew Hoag
We had our transmission go on my partners birthday in Halifax. We live 2 hours away and the week was chaotic to say the least. Mandy and the team were amazing and not only found us a really good refurbished tranny for a great price, but also had the car done a week early which saved us rental car and insurance fees. Cannot recommend them enough. If you have tranny issues….GO TO THEM :)Matthew, Melissa, Maverick and Murphy
Date: March 28, 2026
Website: Google
No.1 on my list
Langis
No.1 on my list
Date: March 28, 2026
Website: Google
No.1 on my list
Langis
No.1 on my list
Date: March 28, 2026
Website: Google
Mr phill was the absolute...
REGAN Knowles
Mr phill was the absolute best to deal with. Great service, Extremely knowledgeable. I would highly recommend to anyone in need of transmission repair.
Date: March 27, 2026
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Excellent service good deal not...
Sefer Caka
Excellent service good deal not expensive just super good
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