Trying to find parts

Hello! Thanks for posting. It looks like you need either a Series 380 or a Series 385 channel balance. To know determine,  measure the depth of your bottom, plastic shoe attachment. If it's 1", you'll need the Series 380, but if it measures 1-3/32", you'll need the Series 385 balance. For either series, you will pick the 2040 option to reflect your "2040" stamp. 

Feel free to reach back out with any questions that may come up during the ordering and installation process!