Replacing weather-stripping
 

Hi folks,
Just checking to see if anyone has replaced their window rubber weather-stripping.
I'm not referring to the door outer weather-strip already listed in the Knowledge Base: How To Replace The Door Outer Weather-strip
http://www.318ti.org/forum/showthread.php?t=29000

I want to replace the following:
Part #1
http://i1093.photobucket.com/albums/...psyxfqpnfp.jpg

Wondering how complex or special tools/skills needed.
Thanks