![Window Regulator Drum Gear Spool](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)
NOTE:
The installation method for left and right sides of window regulator drum gear is different. When installing it on the left side, the window line needs to be installed in reverse. You can try adjusting the direction of the gears and window lines and debugging them to ensure they can work properly