# Who here knows how SYNCHROS work?

**URL:** <https://forums.speedlife.net/t/who-here-knows-how-synchros-work/49859>\
**Category:** NYSpeed Automotive\
**Created:** [June 11, 2008, 9:45am UTC](https://forums.speedlife.net/t/who-here-knows-how-synchros-work/49859 "2008-06-11T09:45:22Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Dr.Stevil](https://avatars.discourse-cdn.com/v4/letter/d/da6949/32.png) [@Dr.Stevil](https://forums.speedlife.net/u/Dr.Stevil)\
**Post date:** [June 11, 2008, 9:50am UTC](https://forums.speedlife.net/t/who-here-knows-how-synchros-work/49859/3 "2008-06-11T09:50:40Z")

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> The cone on the blue gear fits into the cone-shaped area in the collar, and friction between the cone and the collar synchronize the collar and the gear. The outer portion of the collar then slides so that the dog teeth can engage the gear.

> Every manufacturer implements transmissions and synchros in different ways, but this is the general idea.

> **[How a Manual Transmission Works](https://auto.howstuffworks.com/transmission.htm#pt3)**
>
> What does that funny "H" pattern on my car's gear shift have to do with my transmission? How does it make the car change gears? And when I mess up and hear that horrible grinding sound, what is actually grinding?

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