Thanks Brian,
I am using an old version of Unigraphics. I don't even remember where it came from. I have been using UG since '93 at work so it is pretty easy for me to do just about anything with it.
I am currently modeling up the tail light housings for my '73 Firebird with hopes of having them CNC cut from billet... I don't have any pics of the computer model but here is a link to my Fotki site.
http://public.fotki.com/astroracer/p...t-tail-lights/

It shows how I set them up for measuring... I'll have pics of the model in a day or so.