Drip rail Install help

Im ready to put on the drip rail of my 66 Dart. Was wondering what is the easiest way to get them on. Where should I start? The drip rail is 2 pcs. The front rail will go over the end of the rear drip rail. do i roll the top in then tap the lower edge into place? Should I use any grease to get the tip to roll over the edge? I tried breifly and it feels very very tight. It came off so I know it will go on I just dont want to dent it while putting it on.
Thanks Rod