what is it doing?
making a loud thump when going over bumps.
can you tell which side it seems to be coming from?
open the hood, and hold onto the top of the strut rod, then have someone bounch the front of the car pretty hard, you will feel the cluck in the rod if the sturt mount is bad(this is what it sounds like)
how would you go about holding the strut rod when it has a spring surronding it?
Check the sway bar too. All the GP's, Regals, Centurys etc...the front sway bars are breaking. They are on national back order, and we have been selling shit out of those as well.
It could also be sway bar bushings/links. The whole sway bar could be cracked too. We see it on a lot of full size GM cars.
Edit:
Didn't even realize you said that, but exactly. With American Axle back now they should start getting more out. We got one for a Regal the other day. It took about a week.