Access Limited tonneau cover - am I missing clamps?

I got the box in the mail on Thursday, and opened it this morning.

Do I need the 6 clamps that are mentioned in the Install Instructions?


Thanks
Jeremy

 

Here's an install thread with lots of pictures, and another.

Frank

 

thanks for the link, this first link looks like all I need. i got the rails installed and then the rain started. so the rest of the install is probably on hold till next weekend.

However, i already have some weather stripping on the rail along the back window. Do I need to remove it, and then install the included 90 degree angle weather stripping that came with the kit - see pic below? i figure if I leave it and install the other stuff on top of it, its not going to be secure.