what's the difference?

I was just curious, besides obviously the bodies and trim, are there any major mechanical or electrical differences between the later model (91-current model) Park Avenues and Lesabres? So far every component I've taken from a donor Lesabre in the local junkyard fits my Park Avenue just fine, but I wanted to see if I'd get snagged on any particular part that would have to come out of another Park Ave.

Same chassis, mostly the same interior, same engine/tranny/underhood components, and headlights.

The differences would be the front fenders/hood/grille/bumper, and from the rear wheels back to the back bumper.