You can use the all rubber trim for the rear or pull the metal strip off. You can also add a third brake light window. The rear is so easy it is a 10 minute job if you have no rust to repair under the seal. Clean the drain holes at the corners too. Run the nylon cord (1/8" or so) around the window in the channel for the glass. Set the window in place and get in the car were the free ends of the cord should be. With an assistant gently pushing on the glass, pull the cord ends and watch the seal flip over the cars sheet metal as you pull. Dont let teh cord rip the seal. When you are done, tap the window with the palm of your hand to check that it is fully seated. Incredibly easy.