Shift kit

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The term "Shift Kit" is a registered trademark of the company "TransGo" which originated the development of automatic transmission valve body improvement and upgrade components such as springs, valves, and instructional materials to improve the shift characteristics and durability of automatic transmissions. The original owner of TransGo "Gilbert Younger" known as Mr Shift/Mr Transmission was the first person/entity to engineer and develop these Automatic Transmission improvement and correction products. "Shift Kits" are utilized throughout the automatic transmission repair industry to insure the successful rebuild or repairing of the customers vehicle.

TransGo also manufactures another kit type product called "Reprogramming Kit", which is also a registered trademark and term of TransGo. "Reprogramming Kit" is used by TransGo to describe a product that not only improves the shift characteristics but is built to boost a transmissions performance. These products are utilized in Hot Rods, Race Cars, High Performance and Heavy Duty vehicles.

To learn more about TransGo/Gil Younger please visit our website [1]

A Shift kit is an aftermarket component for automobiles to improve how well the car shifts between gears. Kits are made for both automatic and manual transmissions.

Manual transmission kit[edit]

For manual transmission equipped cars, it is a component that replaces the stock gear selector (shifter). A shift kit usually shortens the throws of selecting a gear (also known as a short throw shift), therefore allowing a driver to reduce the shift time and change gears more efficiently.

Automatic transmission kit[edit]

An automatic transmission's main focus is smooth shifting between gears.[1] To accomplish this it often goes into two gears at once while shifting up, which is known as a shift overlap. In these cars, it is a kit that can reduce or eliminate the shift overlap.[2] It will also reduce wear because the transmission won't be trying to drive in two gears at once.


  1. ^ Sessions, Ron (1987). Turbo Hydra-Matic 350 Handbook. HP Trade. p. 226. ISBN 978-0-89586-051-4. 
  2. ^ "Powershifting Your Automatic". Popular Mechanics 165 (May 1988): 126–127. 1988.