Hi, I'm Billy and i will be assisting you with your problem.
You have a problem with the exhaust mountings or the catalytic converter is broken inside the exhaust system
most probably it's an exhaust mount or fixture that does this on these vehicles
Keep me posted, to make sure that my answer is satisfactory, and kindly click the ACCEPT button so i get paid for my time
Thanks...I will! Paul
do you need further explanation?