The glass run channel simply presses into the door channel of the top and back part of the door. It has the correct 90 degree corner for a correct fit. This single piece fits either the driver or passenger side rear doors. Protect your vehicle’s interior from the outside elements and reduce noise level while driving simply by replacing your dried-out or cracked door weatherstrip with a proven product that’s accepted in the industry. Made from the OEM specs to install and fit for an authentic appearance.