Chrysler 300 bucket seats

[Thundergrunt]

I don't comment much, but check the site daily and have learned a lot.  I need help and can't find anything on kine.  I'm trying to separate the back from the bottom on a 2000 Chrysler 300 bucket seats.  I've even used an impact driver...will turned the bolt, but doesn't loosen.  In feeling the bottom side, it appears it is riveted.  Anyway to get separated except drilling out the bolt?.
THANKS.
Dale

[Thundergrunt]

Sorry, that's a 2004 Chrysler.