Well there are 2 different types of mods to your 96-99 tail lights.
Both are similar in technique of removal, but have different results.
Here are examples:
http://www.max-performance.net/image...048_3_full.jpg
*notice how they are a little frosty
http://www.max-performance.net/image...0tails%202.JPG
*notice how they are completely clear, but you can see the bulb.
Some people don't like the bulb to be seen.
If you haven't done this before, I might opt for buying them from someone who has done it. Its pretty messy and you can crack the lens cover VERY easily.