When starting out regardless if I shift into reverse or drive I get a thunking noise that sounds like the sub frame bushings are worn out but that is not the case. She will make this noise when starting out and when applying the brake at low speeds to stop. She is an 02 GP GT 2door purchased new and has 185,000 miles on her 3800 engine. Within the past 6 months I have replaced all four shocks/struts, engine motor mount and tranny mount, rear sub frame bushing, left and right wheel hubs and CV axels. The engine runs like a champ. I am posting this in the suspension section but I honestly don't know where I should be posting. Thanks in advance for your recommendations. Bill