I installed a Mustang Project LED sequential turn signal light kit for a 67 Riviera on my 68 Riviera. Here is a link to their Riviera kits: http://www.mustangproject.com/Catalog.aspx?category=68642387-6653-4218-935e-89619ca5f35a&sub=e1f14050-c9ad-491f-a2cb-5824ac0a4f19   Click links below to see the results    Driver tail light turn signal:    Passenger tail light turn signal:    Here is an installation video from MP for a '65