rooling clunking noise under deceleration on 1996 Mitsubishi Eclipse GSX

recently my wife and I bought an eclipse gsx "awd turbo for those who don't know :)" well anyways under deceleration in any gear I hear a loud clunk that seems to sound like a jack hamer is hitting my undercarriage lol sometimes it sounds like it's coming from the front sometimes it sounds like it's coming from the back, it even does this in a push start situation but doesn't engage motor turn just rolling clunk noise :(. I have a couple of theories but want a second opinion cause both these theories seem quite expensive. can anyone help or has anyone had this issue before?

by in Ontario, CA on March 15, 2011
4 answers
ANSWER by , March 15, 2011
nothing will work to diagnose a noise like this except a physical inspection. if something is indeed hitting the chassis, better get this checked ASAP. a good local Japanese specialty shop is best.
ANSWER by , March 15, 2011
check the axles for lossness or bad joints. also, the motor mount may be bad allowing the motor to move around too much.. Roy
ANSWER by , March 16, 2011
check the carrier bearings on the driveshaft. guarantee thats the problem. DSM fan and mechanic for 10 years. I've seen this alot!
ANSWER by , April 24, 2011
possibly your flywheel bolts are coming loose