Shift kit

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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.