Make sure that the cabinet you are adding a pull out drawer to has removable shelves. Some cabinet makers make shelves permanent, so look to see if they are sitting on shelf pins.
If you're installing the pull out drawer on a face frame cabinet, add a spacer so that the slides will clear the frame. Use the DrawerJig to install the spacer and the ball bearing slides.
Flip the Drawer Jig around to the front and clamp it. Set the drawer on the jig and attach the ball bearing slides to it. Thanks to the DrawerJig, it should be a perfect fit!