Just finished this a couple of months ago....very easy install you can find everything you need here
[ame=http://www.google.com/search?q=how+to+install+99-01+cobra+tail+lights&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-USfficial&client=firefox-a]how to install 99-01 cobra tail lights - Google Search[/ame]