I personally use Anzo's myself.
I have:
And added the tails to:
www.amazon.com/311004-Chevrolet-Clear-Light-Assembly/dp/B0015PTTZ6/
I also converted to a led compatible flasher unit so I can cut all the ballasts of the off.
I want these tails... can you expound on why you want to cut off the ballasts? I am considering replacing all exterior bulbs with LED's anyway and realize I would need an LED compatable flasher, just didnt know the advantage to getting rid of the ballasts.