# Rotation Direction The exterior of the gearbox is completely symmetrical; however, it is **NOT** symmetrical internally. Depending on the orientation of the gearbox, the bevel gear on the output shaft could be on either side which will affect the rotation direction. {% hint style="info" %} Before installing the gearbox, check the rotation direction by hand and orient it in the direction that produces the desired rotation direction. {% endhint %} ### Orientation A

Bevel gears on right side of gearbox - rotation directions

### Orientation B

Bevel gears on left side of gearbox - rotation directions

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