Does anyone know the GM part number for an air dam for an 87 Trans Am. I am looking for the part that goes right under the radiator. Now with the aluminum heads on the car I'm not going to take any chances so I will get the missing air dam for my car finally lol

The amount of times these things get ripped off I would of thought someone would have the part number

Check this article out, and if what you need, is like what was used in the article, then the part numbers for the upper and lower deflectors are: 10017673 and 10020322. I don't remember which is which, but you probably need both.

Replacing an Air Dam

Thank you very much just what I needed