What is a Shift Kit?

By Mister Transmission

Today’s customers demand a transmission which shifts smoothly, is durable, and delivers excellent fuel economy all at the same time.

To accomplish these benefits we would install what is known as an automatic transmission shift kit, which is probably one of the most misunderstood upgrades in the automotive world.

Many people know the words, but not many fully understand what a shift kit truly does or why it’s desired. In short, an automatic transmission shift kit modifies the transmission’s shift timing in order to dramatically increase shift firmness and durability of the transmission components.

This is desirable because the automobile manufacturer’s engineers sometimes allow far too much shift overlap (when the transmission is actually in two gears at once) in an effort to increase shift smoothness. It’s this overly smooth, disconnected feeling that earned early automatic transmissions the label “slush box.”

While the extended shift overlap creates a very smooth shift, it also reduces the efficiency and durability of the transmission by making the friction surfaces work overtime. The added friction also creates excessive heat, which prematurely wears out seals and clutches.

Transmission shift kits can reduce this overlap time while improving the overall shifting action. By better utilizing the energy normally turned into heat by slipping during extended overlap, shift kits allow you to instead use that inertial energy for forward motion with quicker shifts, therefore you’re also able to notice improved city fuel economy.

Most vehicle owners are willing to live with the faster shift patterns in exchange for the extended durability and added fuel economy. Plus, the fact that shift kits can be installed in a few hours without removing the transmission from the vehicle makes them a logical upgrade.

We carry a variety of shift kits for most makes and models and would be more than happy to answer any questions you have. However, due to the fact that one misplaced shift valve or spring can result in a malfunctioning or damaged transmission, it’s highly recommended that you allow the experts at Mister Transmission to perform the installation of a shift kit for you. To have a shift kit installed in your vehicle’s transmission, please contact your local Mister Transmission.

Want to know more?
Visite one of our locations!

image-reviews image-reviews
Customer Reviews
Excellent. Referred by another local...
Gooldog
Excellent. Referred by another local business to change fluid in a CVT transmission.
Date: September 9, 2021
Website: Google
Steve and his team were...
Christian Melis
Steve and his team were fantastic to deal with. They replaced the transmission on my 2011 Dodge Grand Caravan and now drives better than when we purchased it.EXCELLENT customer services .
Date: September 7, 2021
Website: Google
Know that they want to...
Diane Kennedy
Know that they want to give the best prices as well as the best quality of service and quality of repairs they care
Date: September 7, 2021
Website: Google
Trustworthy. They communicated throughout the...
Dave Bergmuller
Trustworthy. They communicated throughout the whole process.
Date: September 7, 2021
Website: Google
Franchise owner Jason’s professionalism is...
Russell Forsyth
Franchise owner Jason’s professionalism is exemplary as practical honest solutions are discussed with his team of highly experienced mechanics offering inciteful customer service that is respected.
Date: September 6, 2021
Website: Google
Worth every penny.The folks at...
Paul Creaser
Worth every penny.The folks at Mr. T are friendly, capable and accomodating. They were able to able to see me on short notice and were even able to tell le what was wrong, and gave me a paper copy of what my car needs.Not loads of places to park because of yhe construction next door taking half of their lot, clearly not their fault.
Date: September 6, 2021
Website: Google
Absolutely recommended! Hardworking, humble people...
Bjoern Ewald
Absolutely recommended! Hardworking, humble people who clearly know what they are doing. I wish every business was like that. Repaired the CVT on my 2014 Subaru and it runs like new. Price was reasonable. Glad I did not trade in the car at the dealership. Christina in the office sets a model of courtesy and professionalism, and the owner even drove me to the car rental after I dropped off the car. Can't say enough good things about these guys!
Date: September 5, 2021
Website: Google
On time. Awesome service.
Ugesh Chand
On time. Awesome service.
Date: September 4, 2021
Website: Google
Great and fast service! Will...
Dave Chen
Great and fast service! Will definitely come back in the future. Love the fact that you can text the business admin regarding services instead of playing phone tag like other shops.
Date: September 3, 2021
Website: Google
Great service!
Fernanda DeCarolis
Great service!
Date: September 3, 2021
Website: Google
Featured Services
Transmission Repair

The evolution of transmissions has made these machines and systems increasingly complex. When transmission repairs are required, determining the cause and cure for what ails can be tricky.

Read More
Transmission Technology

At Mister Transmission we have access to leading-edge diagnostic equipment, enabling us to offer you the fastest and most accurate findings about what’s going on inside your vehicle’s transmission.

Read More
Transmission Maintenance & Service

Just as you have other parts of your car serviced, your transmission needs maintenance to ensure a long life and avoid transmission problems.

Read More
Recent Blogs
3 Major And 3 Minor Transmission Repairs
Transmission repairs are not all equal. There are minor and there are major
Read More
August 2, 2021
What You Need To Know About Torque Conve...
Torque converter repair is something that comes up fairly often in comparison to
Read More
July 28, 2021
What Are Some Common CVT Transmission Pr...
CVT transmission problems aren’t all that different from other automatic
Read More
July 21, 2021
The Top Ten Models With Major Transmissi...
Which transmissions have the most problems? Here are the ten models with the most
Read More
July 14, 2021
“How Can I Tell What Kind Of Trans...
“What transmission do I have?” It’s a question we hear a lot at Mister
Read More
July 7, 2021
4 Common Transmission Maintenance Mistak...
Transmission maintenance is absolutely imperative to ensure long and efficient life
Read More
June 25, 2021
How A Transmission Shop Can Actually Sav...
Transmissions are expensive. And they can be expensive to fix. That’s why any visit
Read More
June 23, 2021
The Benefits Of A Transmission Fluid Cha...
When done at the right time, a transmission fluid change can really benefit your vehicle.
Read More
June 17, 2021
RAM Differential and Driveability Issue
You are enjoying a drive in your 2012 - 2018 Ram 1500 pickup truck and all of a sudden,
Read More
May 19, 2021
7 Common Transmission Problems
We all want to avoid transmission problems. To do that, it helps to know what some of
Read More
May 10, 2021