Well, I'm not saying this is definitive proof of my belief that 97-03 quick struts work with 06-08 GP's, but it is a start.

http://www.ebay.com/itm/Centry-Regal...386bde&vxp=mtr

Basically in the compatibility section it says that strut "Will not fit models where your sway bar link attaches to your strut." Well 06+ doesn't attach to the strut.

What I need to do is go to Advance and have them pull an 03 strut and an 06 strut and compare them.