I just got the new window rubber to install on my 62 C10, but it didn't come with instructions. I got the door open and the old rubber out, but I'm not sure the sequence to reinstall. There are two pieces, one on the front side of the glass, the other runs over the top and down the back. Which one do I install first, or does it matter? Do I have to remove the vent window to install that one? Do I need to remove the window to install the rubbers? After a lengthy search, I read where on an early year they used soap and water to slide the new ones in. Thanks for any help.