factory aluminum trunk lid... check this out
the parts are only aluminized like exaust...they're still magnetic...
Sorry, they are not. Some companies "aluminize" exhaust components, but that doesn't have anything to do with any other Feather Duster and Dart Lite components.
I have had 2 Feather Duster hoods, and currently have 2 Feather/Lite trunk lids, 2 Dart Lite hoods and a Feather Duster front bumper assembly. I may have had some other related parts also a while back. The under-bracing on the hoods and trunks are full, aluminum stampings and the bumper brace is a solid aluminum piece with some needed brackets heliarced on so they can be bolted to the "shock absorber" brackets.
On the hood and trunk, you just have to try the magnet on the underside bracing because, as noted, the top sheetmetal is still steel.
There was one instance where I went to purchase a Feather Duster hood and trunk which the guy swore came off of the same car. I don't know if the car was in an accident or not, but either the trunk or hood did not have aluminum under-bracing. Either the car was in an accident and the part was replaced or Chrysler ran out of that particular part during production and substituted a regular all-steel version. (It's been known to happen with other body parts as well as engines/parts.)
I've done a lot of research on the cars before getting parts for my application and have seen a lot of mis-information. I like to keep such information in our hobby correct. We went through a similar discussion on the A-body single scoop that had dual snorkles/openings (Demon/Dart Sport). If I don't know or am not sure about something, I will state that in my posts.