I agree with the above. You are running into the same problem I have finding trim parts that are unique to the LeMans and not shared with the GTO. It took me over a year to find a side marker lens for mine. I found mine on classicnosparts.com. They were very good to deal with but their inventory is limited. The plus is if they happen toi have what you need, their parts are factory direct NOS. I checked his inventory and they do not have the grills for your car either. I would say if you found someone that has what you need, you have no choice but to go with it.